diff --git a/package-lock.json b/package-lock.json
index 01c14fe..a95a851 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.21.0-rc11",
+  "version": "0.21.0-rc12",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@orionprotocol/sdk",
-      "version": "0.21.0-rc11",
+      "version": "0.21.0-rc12",
       "hasInstallScript": true,
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index fad4364..994bd6d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.21.0-rc11",
+  "version": "0.21.0-rc12",
   "description": "Orion Protocol SDK",
   "main": "./lib/index.cjs",
   "module": "./lib/index.js",
diff --git a/src/crypt/hashOrder.ts b/src/crypt/hashOrder.ts
index c62f97d..858b03d 100644
--- a/src/crypt/hashOrder.ts
+++ b/src/crypt/hashOrder.ts
@@ -1,16 +1,28 @@
 import { ethers, keccak256 } from 'ethers';
 import type { Order } from '../types.js';
 
-const ORDER_TYPEHASH = "0xb5132db62dfceb466f2f8aee7a039db36a99772e5a9771d28388a5f9baad7c54"
+const ORDER_TYPEHASH = '0xb5132db62dfceb466f2f8aee7a039db36a99772e5a9771d28388a5f9baad7c54'
 
 export default function getOrderHash(order: Order) {
-	const abiCoder = ethers.AbiCoder.defaultAbiCoder()
+  const abiCoder = ethers.AbiCoder.defaultAbiCoder()
 
-	const { senderAddress, matcherAddress, baseAsset, quoteAsset, matcherFeeAsset, amount, price, matcherFee, nonce, expiration, buySide } = order
-	const orderBytes = abiCoder.encode(
-		["bytes32", "address", "address", "address", "address", "address", "uint64", "uint64", "uint64", "uint64", "uint64", "uint8"],
-		[ORDER_TYPEHASH, senderAddress, matcherAddress, baseAsset, quoteAsset, matcherFeeAsset, amount, price, matcherFee, nonce, expiration, buySide]
-	)
+  const {
+    senderAddress,
+    matcherAddress,
+    baseAsset,
+    quoteAsset,
+    matcherFeeAsset,
+    amount,
+    price,
+    matcherFee,
+    nonce,
+    expiration,
+    buySide
+  } = order
+  const orderBytes = abiCoder.encode(
+    ['bytes32', 'address', 'address', 'address', 'address', 'address', 'uint64', 'uint64', 'uint64', 'uint64', 'uint64', 'uint8'],
+    [ORDER_TYPEHASH, senderAddress, matcherAddress, baseAsset, quoteAsset, matcherFeeAsset, amount, price, matcherFee, nonce, expiration, buySide]
+  )
 
-	return keccak256(orderBytes)
-}
\ No newline at end of file
+  return keccak256(orderBytes)
+}
diff --git a/src/crypt/signLockOrder.ts b/src/crypt/signLockOrder.ts
index 095c6b2..98ff265 100644
--- a/src/crypt/signLockOrder.ts
+++ b/src/crypt/signLockOrder.ts
@@ -10,8 +10,7 @@ import { LOCK_ORDER_TYPES } from '../constants/lockOrderTypes';
 const DEFAULT_EXPIRATION = 29 * 24 * 60 * 60 * 1000; // 29 days
 
 export type SignLockOrderProps = {
-  userAddress: string // адрес юзера который хочет сделать лок
-  senderAddress: string // broker
+  senderAddress: string // user
   asset: string
   amount: BigNumber.Value
   signer: ethers.Signer
@@ -20,7 +19,6 @@ export type SignLockOrderProps = {
 }
 
 export const signLockOrder = async ({
-  userAddress,
   senderAddress,
   amount,
   chainId,
@@ -34,7 +32,6 @@ export const signLockOrder = async ({
   const secretHash = ethers.keccak256(secret);
 
   const order: LockOrder = {
-    user: userAddress,
     sender: senderAddress,
     expiration,
     asset,
diff --git a/src/crypt/signOrder.ts b/src/crypt/signOrder.ts
index bf25618..5aadb6e 100644
--- a/src/crypt/signOrder.ts
+++ b/src/crypt/signOrder.ts
@@ -41,8 +41,7 @@ export const signOrder = async ({
 }: SignOrderProps) => {
   const nonce = Date.now();
   const expiration = nonce + DEFAULT_EXPIRATION;
-  const secret = generateSecret();
-  const secretHash = ethers.keccak256(secret);
+  // const secretHash = ethers.keccak256(secret);
 
   const isCrossChain = targetChainId === undefined || targetChainId !== chainId;
 
@@ -75,8 +74,70 @@ export const signOrder = async ({
       }
       : {}),
     buySide: side === 'BUY' ? 1 : 0,
+    // chainId,
+    // secretHash,
+    // lockOrderExpiration: expiration
   };
 
+  const limitOrder = {
+    senderAddress,
+    matcherAddress,
+    baseAsset: baseAssetAddress,
+    quoteAsset: quoteAssetAddress,
+    matcherFeeAsset: serviceFeeAssetAddress,
+    amount: normalizeNumber(
+      amount,
+      INTERNAL_PROTOCOL_PRECISION,
+      BigNumber.ROUND_FLOOR,
+    ),
+    price: normalizeNumber(
+      price,
+      INTERNAL_PROTOCOL_PRECISION,
+      BigNumber.ROUND_FLOOR,
+    ),
+    matcherFee: normalizeNumber(
+      matcherFee,
+      INTERNAL_PROTOCOL_PRECISION,
+      BigNumber.ROUND_CEIL, // ROUND_CEIL because we don't want get "not enough fee" error
+    ),
+    nonce: BigInt(nonce),
+    expiration: BigInt(expiration),
+    buySide: side === 'BUY' ? 1 : 0,
+  };
+
+  // const limitOrderHash = ethers.keccak256(ethers.toUtf8Bytes(JSON.stringify(limitOrder)));
+  // Generate the orderParamsHash
+  const orderParamsHash = ethers.keccak256(ethers.AbiCoder.defaultAbiCoder().encode(
+    ['address', 'address', 'address', 'address', 'address', 'uint64', 'uint64', 'uint64', 'uint64', 'uint64', 'uint8'],
+    [
+      limitOrder.senderAddress,
+      limitOrder.matcherAddress,
+      limitOrder.baseAsset,
+      limitOrder.quoteAsset,
+      limitOrder.matcherFeeAsset,
+      limitOrder.amount,
+      limitOrder.price,
+      limitOrder.matcherFee,
+      limitOrder.nonce,
+      limitOrder.expiration,
+      limitOrder.buySide
+    ]
+  ));
+
+  const secret = generateSecret();
+  const secretHash = ethers.keccak256(secret);
+
+  console.log(limitOrder, chainId, secretHash, expiration);
+
+  // Type hash from Solidity contract
+  const CROSS_CHAIN_ORDER_TYPEHASH = ethers.keccak256(ethers.toUtf8Bytes('Order(address senderAddress,address matcherAddress,address baseAsset,address quoteAsset,address matcherFeeAsset,uint64 amount,uint64 price,uint64 matcherFee,uint64 nonce,uint64 expiration,uint8 buySide,uint24 chainId,bytes32 secretHash,uint64 lockOrderExpiration)'))
+
+  // Generate the full crossChainOrder hash
+  const crossChainOrderHash = ethers.keccak256(ethers.AbiCoder.defaultAbiCoder().encode(
+    ['bytes32', 'bytes32', 'uint24', 'bytes32', 'uint64'],
+    [CROSS_CHAIN_ORDER_TYPEHASH, orderParamsHash, Number(chainId), secretHash, BigInt(expiration)]
+  ));
+
   const signature = await signer.signTypedData(
     getDomainData(chainId),
     ORDER_TYPES,
@@ -93,7 +154,7 @@ export const signOrder = async ({
     ...order,
     id: hashOrder(order),
     signature: fixedSignature,
-    ...(isCrossChain ? { secret, secretHash, targetChainId } : {})
+    ...(isCrossChain ? { secret, secretHash: crossChainOrderHash, targetChainId } : {})
   };
   return signedOrder;
 };
diff --git a/src/services/Aggregator/index.ts b/src/services/Aggregator/index.ts
index d8bec97..f916a4f 100644
--- a/src/services/Aggregator/index.ts
+++ b/src/services/Aggregator/index.ts
@@ -265,7 +265,6 @@ class Aggregator {
 
     const body = {
       secretHash: signedLockOrder.secretHash,
-      user: signedLockOrder.user,
       sender: signedLockOrder.sender,
       expiration: signedLockOrder.expiration,
       asset: signedLockOrder.asset,
@@ -530,7 +529,7 @@ class Aggregator {
     const signatureHeaders = this.generateHeaders(data, method, path, timestamp, apiKey, secretKey);
     const compiledHeaders = { ...headers, ...signatureHeaders.headers, };
     const body = JSON.stringify(data)
-    ;
+        ;
 
     const res = pmmOrderSchema.parse({});
 
@@ -550,7 +549,9 @@ class Aggregator {
 
         const errorParseResult = errorSchema.safeParse(json);
 
-        if (!errorParseResult.success) { throw Error(`Unrecognized answer from aggregator: ${json}`); }
+        if (!errorParseResult.success) {
+          throw Error(`Unrecognized answer from aggregator: ${json}`);
+        }
 
         throw Error(errorParseResult.data.error.reason);
       }
diff --git a/src/types.ts b/src/types.ts
index fd9d0b4..93e0b62 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -56,8 +56,7 @@ export type CrossOrder = Order & {
 }
 
 export type LockOrder = {
-  user: string // address // адрес юзера который хочет сделать лок
-  sender: string // address // broker
+  sender: string // user address
   expiration: number // uint64
   asset: string // address(?)
   amount: number // uint64