update lockOrderTypes.ts

src/crypt/signLockOrder.ts

@@ -40,7 +40,7 @@ export const signLockOrder = async ({
       INTERNAL_PROTOCOL_PRECISION,
       BigNumber.ROUND_FLOOR,
     )),
-    targetChainId,
+    targetChainId: Number(targetChainId),
     secretHash
   };
 

src/types.ts

@@ -60,7 +60,7 @@ export type LockOrder = {
   expiration: number // uint64
   asset: string // address(?)
   amount: number // uint64
-  targetChainId: SupportedChainId // uint64
+  targetChainId: number // uint64
   secretHash: string // bytes32
 }