diff --git a/packages/rs-dpp/src/errors/consensus/consensus_error.rs b/packages/rs-dpp/src/errors/consensus/consensus_error.rs
index 01aa15699b..21651aca87 100644
--- a/packages/rs-dpp/src/errors/consensus/consensus_error.rs
+++ b/packages/rs-dpp/src/errors/consensus/consensus_error.rs
@@ -53,10 +53,8 @@ impl ConsensusError {
             .reject_trailing_bytes()
             .with_big_endian()
             .serialize(self)
-            .map_err(|_| {
-                ProtocolError::EncodingError(String::from(
-                    "unable to serialize identity public key",
-                ))
+            .map_err(|e| {
+                ProtocolError::EncodingError(format!("unable to serialize consensus error: {e}"))
             })
     }
 
@@ -67,7 +65,7 @@ impl ConsensusError {
             .with_big_endian()
             .deserialize(bytes)
             .map_err(|e| {
-                ProtocolError::EncodingError(format!("unable to deserialize consensus error {}", e))
+                ProtocolError::EncodingError(format!("unable to deserialize consensus error: {e}"))
             })
     }
 }
diff --git a/packages/rs-dpp/src/identity/identity.rs b/packages/rs-dpp/src/identity/identity.rs
index 442237f5bd..d2963950d8 100644
--- a/packages/rs-dpp/src/identity/identity.rs
+++ b/packages/rs-dpp/src/identity/identity.rs
@@ -334,12 +334,6 @@ impl Identity {
         raw_object.try_into()
     }
 
-    /// Creates an identity from a json object
-    pub fn from_json_object(raw_object: JsonValue) -> Result<Identity, ProtocolError> {
-        let value: Value = raw_object.into();
-        value.try_into()
-    }
-
     /// Computes the hash of an identity
     pub fn hash(&self) -> Result<Vec<u8>, ProtocolError> {
         Ok(hash::hash(self.to_buffer()?))
diff --git a/packages/rs-platform-value/src/types/identifier.rs b/packages/rs-platform-value/src/types/identifier.rs
index 585bfa5051..564eeaf4d1 100644
--- a/packages/rs-platform-value/src/types/identifier.rs
+++ b/packages/rs-platform-value/src/types/identifier.rs
@@ -67,13 +67,30 @@ impl<'de> Deserialize<'de> for IdentifierBytes32 {
 
             deserializer.deserialize_string(StringVisitor)
         } else {
-            let value = Value::deserialize(deserializer)?;
+            struct BytesVisitor;
 
-            Ok(IdentifierBytes32(
-                value
-                    .into_hash256()
-                    .map_err(|_| D::Error::custom("hello"))?,
-            ))
+            impl<'de> Visitor<'de> for BytesVisitor {
+                type Value = IdentifierBytes32;
+
+                fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+                    formatter.write_str("a byte array with length 32")
+                }
+
+                fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
+                where
+                    E: serde::de::Error,
+                {
+                    if v.len() != 32 {
+                        return Err(E::invalid_length(v.len(), &self));
+                    }
+                    let mut array = [0u8; 32];
+                    array.copy_from_slice(&v);
+
+                    Ok(IdentifierBytes32(array))
+                }
+            }
+
+            deserializer.deserialize_bytes(BytesVisitor)
         }
     }
 }
diff --git a/packages/wasm-dpp/src/errors/consensus/basic/decode/protocol_version_parsing_error.rs b/packages/wasm-dpp/src/errors/consensus/basic/decode/protocol_version_parsing_error.rs
index f84b5c32e0..cbca00edb4 100644
--- a/packages/wasm-dpp/src/errors/consensus/basic/decode/protocol_version_parsing_error.rs
+++ b/packages/wasm-dpp/src/errors/consensus/basic/decode/protocol_version_parsing_error.rs
@@ -17,6 +17,13 @@ impl From<&ProtocolVersionParsingError> for ProtocolVersionParsingErrorWasm {
 
 #[wasm_bindgen(js_class=ProtocolVersionParsingError)]
 impl ProtocolVersionParsingErrorWasm {
+    #[wasm_bindgen(constructor)]
+    pub fn new(parsing_error: String) -> Self {
+        Self {
+            inner: ProtocolVersionParsingError::new(parsing_error),
+        }
+    }
+
     #[wasm_bindgen(js_name = getParsingError)]
     pub fn get_parsing_error(&self) -> String {
         self.inner.parsing_error().to_string()
diff --git a/packages/wasm-dpp/src/errors/consensus/fee/balance_is_not_enough_error.rs b/packages/wasm-dpp/src/errors/consensus/fee/balance_is_not_enough_error.rs
index bfe21ea751..ad236f8055 100644
--- a/packages/wasm-dpp/src/errors/consensus/fee/balance_is_not_enough_error.rs
+++ b/packages/wasm-dpp/src/errors/consensus/fee/balance_is_not_enough_error.rs
@@ -18,6 +18,13 @@ impl From<&BalanceIsNotEnoughError> for BalanceIsNotEnoughErrorWasm {
 
 #[wasm_bindgen(js_class=BalanceIsNotEnoughError)]
 impl BalanceIsNotEnoughErrorWasm {
+    #[wasm_bindgen(constructor)]
+    pub fn new(balance: Credits, fee: Credits) -> Self {
+        Self {
+            inner: BalanceIsNotEnoughError::new(balance, fee),
+        }
+    }
+
     #[wasm_bindgen(js_name=getBalance)]
     pub fn get_balance(&self) -> Credits {
         self.inner.balance()
diff --git a/packages/wasm-dpp/src/errors/consensus/signature/identity_not_found_error.rs b/packages/wasm-dpp/src/errors/consensus/signature/identity_not_found_error.rs
index e7d7f35642..02a4822063 100644
--- a/packages/wasm-dpp/src/errors/consensus/signature/identity_not_found_error.rs
+++ b/packages/wasm-dpp/src/errors/consensus/signature/identity_not_found_error.rs
@@ -4,6 +4,7 @@ use dpp::consensus::ConsensusError;
 use wasm_bindgen::prelude::*;
 
 use crate::buffer::Buffer;
+use crate::identifier::IdentifierWrapper;
 
 #[wasm_bindgen(js_name=IdentityNotFoundError)]
 pub struct IdentityNotFoundErrorWasm {
@@ -18,9 +19,16 @@ impl From<&IdentityNotFoundError> for IdentityNotFoundErrorWasm {
 
 #[wasm_bindgen(js_class=IdentityNotFoundError)]
 impl IdentityNotFoundErrorWasm {
+    #[wasm_bindgen(constructor)]
+    pub fn new(identity_id: IdentifierWrapper) -> Self {
+        Self {
+            inner: IdentityNotFoundError::new(identity_id.into()),
+        }
+    }
+
     #[wasm_bindgen(js_name=getIdentityId)]
-    pub fn get_identity_id(&self) -> Buffer {
-        Buffer::from_bytes(self.inner.identity_id().as_bytes())
+    pub fn get_identity_id(&self) -> IdentifierWrapper {
+        self.inner.identity_id().into()
     }
 
     #[wasm_bindgen(js_name=getCode)]
@@ -37,7 +45,7 @@ impl IdentityNotFoundErrorWasm {
     pub fn serialize(&self) -> Result<Buffer, JsError> {
         let bytes = ConsensusError::from(self.inner.clone())
             .serialize()
-            .map_err(|e| JsError::from(e))?;
+            .map_err(JsError::from)?;
 
         Ok(Buffer::from_bytes(bytes.as_slice()))
     }
diff --git a/packages/wasm-dpp/src/errors/consensus/state/data_contract/data_contract_already_present_error.rs b/packages/wasm-dpp/src/errors/consensus/state/data_contract/data_contract_already_present_error.rs
index e0572742db..ef4b7fa0de 100644
--- a/packages/wasm-dpp/src/errors/consensus/state/data_contract/data_contract_already_present_error.rs
+++ b/packages/wasm-dpp/src/errors/consensus/state/data_contract/data_contract_already_present_error.rs
@@ -1,7 +1,9 @@
 use crate::buffer::Buffer;
+use crate::identifier::IdentifierWrapper;
 use dpp::consensus::codes::ErrorWithCode;
 use dpp::consensus::state::data_contract::data_contract_already_present_error::DataContractAlreadyPresentError;
 use dpp::consensus::ConsensusError;
+use dpp::identifier::Identifier;
 use wasm_bindgen::prelude::*;
 
 #[wasm_bindgen(js_name=DataContractAlreadyPresentError)]
@@ -17,9 +19,16 @@ impl From<&DataContractAlreadyPresentError> for DataContractAlreadyPresentErrorW
 
 #[wasm_bindgen(js_class=DataContractAlreadyPresentError)]
 impl DataContractAlreadyPresentErrorWasm {
+    #[wasm_bindgen(constructor)]
+    pub fn new(data_contract_id: IdentifierWrapper) -> Self {
+        Self {
+            inner: DataContractAlreadyPresentError::new(data_contract_id.into()),
+        }
+    }
+
     #[wasm_bindgen(js_name=getDataContractId)]
-    pub fn data_contract_id(&self) -> Buffer {
-        Buffer::from_bytes(self.inner.data_contract_id().as_bytes())
+    pub fn data_contract_id(&self) -> IdentifierWrapper {
+        self.inner.data_contract_id().to_owned().into()
     }
 
     #[wasm_bindgen(js_name=getCode)]
diff --git a/packages/wasm-dpp/src/identity/mod.rs b/packages/wasm-dpp/src/identity/mod.rs
index 0dd9b77d45..1230c689eb 100644
--- a/packages/wasm-dpp/src/identity/mod.rs
+++ b/packages/wasm-dpp/src/identity/mod.rs
@@ -50,7 +50,7 @@ impl IdentityWasm {
         let raw_identity: Value =
             serde_json::from_str(&identity_json).map_err(|e| e.to_string())?;
 
-        let identity = Identity::from_json_object(raw_identity).unwrap();
+        let identity = Identity::from_json(raw_identity).unwrap();
         Ok(IdentityWasm(identity))
     }
 
diff --git a/packages/wasm-dpp/test/integration/error/consensus/deserializeConsensusError.spec.js b/packages/wasm-dpp/test/integration/error/consensus/deserializeConsensusError.spec.js
index 8e58f571ec..338b0af120 100644
--- a/packages/wasm-dpp/test/integration/error/consensus/deserializeConsensusError.spec.js
+++ b/packages/wasm-dpp/test/integration/error/consensus/deserializeConsensusError.spec.js
@@ -2,7 +2,6 @@ const { default: loadWasmDpp } = require('../../../..');
 
 let {
   deserializeConsensusError,
-  decodeProtocolEntity,
   ProtocolVersionParsingError,
 } = require('../../../..');
 
@@ -10,25 +9,23 @@ describe('deserializeConsensusError', () => {
   before(async () => {
     ({
       deserializeConsensusError,
-      decodeProtocolEntity,
       ProtocolVersionParsingError,
     } = await loadWasmDpp());
   });
 
   it('should deserialize consensus error', async () => {
-    try {
-      await decodeProtocolEntity(Buffer.alloc(0));
-    } catch (consensusError) {
-      expect(consensusError).to.be.instanceOf(ProtocolVersionParsingError);
-      expect(consensusError.getCode()).to.equals(1000);
-      expect(consensusError.message).to.equals('Can\'t read protocol version from serialized object: protocol version could not be decoded as a varint');
+    const consensusError = new ProtocolVersionParsingError('test');
+    const message = 'Can\'t read protocol version from serialized object: test';
 
-      const bytes = consensusError.serialize();
+    expect(consensusError).to.be.instanceOf(ProtocolVersionParsingError);
+    expect(consensusError.getCode()).to.equals(1000);
+    expect(consensusError.message).to.equals(message);
 
-      const recoveredError = deserializeConsensusError(bytes);
-      expect(recoveredError).to.be.instanceOf(ProtocolVersionParsingError);
-      expect(recoveredError.getCode()).to.equals(1000);
-      expect(recoveredError.message).to.equals('Can\'t read protocol version from serialized object: protocol version could not be decoded as a varint');
-    }
+    const serializedConsensusError = consensusError.serialize();
+
+    const recoveredError = deserializeConsensusError(serializedConsensusError);
+    expect(recoveredError).to.be.instanceOf(ProtocolVersionParsingError);
+    expect(recoveredError.getCode()).to.equals(1000);
+    expect(recoveredError.message).to.equals(message);
   });
 });