diff --git a/src/simulate/safe.simulate.ts b/src/simulate/safe.simulate.ts
index fd69aaa7..34e3ae0a 100644
--- a/src/simulate/safe.simulate.ts
+++ b/src/simulate/safe.simulate.ts
@@ -12,6 +12,7 @@ import { fromBase64, toBase64 } from '@cosmjs/encoding';
 import { SimulateUtils } from './utils';
 import { IndexerClient } from 'src/utils/apis/IndexerClient';
 import { TX_TYPE_URL } from 'src/common/constants/app.constant';
+import { Chain } from 'src/entities';
 
 export class SafeSimulate {
   signature: string;
@@ -22,16 +23,14 @@ export class SafeSimulate {
   constructor(
     public ownerSimulates: OwnerSimulate[],
     public threshold: number,
-    public prefix: string,
-    public chainId: string = 'aura-testnet-2',
-    public tendermintUrl: string = 'https://rpc.dev.aura.network/',
+    public chain: Chain,
   ) {
     // create pubkey and address
     this.pubkey = createMultisigThresholdPubkey(
       ownerSimulates.map((owner) => owner.pubkey),
       threshold,
     );
-    this.address = pubkeyToAddress(this.pubkey, this.prefix);
+    this.address = pubkeyToAddress(this.pubkey, this.chain.prefix);
   }
 
   /**
@@ -43,21 +42,27 @@ export class SafeSimulate {
     if (this.signature) return;
 
     // create simple msgs, fee
-    const msgs = SimulateUtils.getDefaultMsgs(this.address);
-    const fee = SimulateUtils.getDefaultFee();
+    const msgs = SimulateUtils.getDefaultMsgs(this.address, this.chain.denom);
+    const fee = SimulateUtils.getDefaultFee(this.chain.denom);
 
     // get account number and sequence
     const indexerClient = new IndexerClient();
     const { accountNumber, sequence } =
       await indexerClient.getAccountNumberAndSequence(
-        this.chainId,
+        this.chain.chainId,
         this.address,
       );
 
     // sign with all owners
     const result = await Promise.all(
       this.ownerSimulates.map(async (ownerSimulate) =>
-        ownerSimulate.sign(msgs, fee, accountNumber, sequence, this.chainId),
+        ownerSimulate.sign(
+          msgs,
+          fee,
+          accountNumber,
+          sequence,
+          this.chain.chainId,
+        ),
       ),
     );
 
@@ -86,11 +91,12 @@ export class SafeSimulate {
     messages: any[],
     safeAddress: string,
     safePubkey: any,
+    prefix: string,
   ) {
     let simulateAuthInfo;
 
     // get simulate msgs base typeUrl and the messages given by user
-    const encodeMsgs = SimulateUtils.anyToEncodeMsgs(messages);
+    const encodeMsgs = SimulateUtils.anyToEncodeMsgs(messages, prefix);
     encodeMsgs.map((msg) => {
       switch (msg.typeUrl) {
         case TX_TYPE_URL.SEND:
@@ -110,12 +116,16 @@ export class SafeSimulate {
     const authInfoBytes = simulateAuthInfo
       ? fromBase64(simulateAuthInfo)
       : await SimulateUtils.makeAuthInfoBytes(
-          this.chainId,
+          this.chain.chainId,
           safeAddress,
           safePubkey,
           this.threshold,
+          this.chain.denom,
         );
-    const bodyBytes = SimulateUtils.makeBodyBytes(encodeMsgs);
+    const bodyBytes = SimulateUtils.makeBodyBytes(
+      encodeMsgs,
+      this.chain.prefix,
+    );
     return {
       authInfoBytes,
       bodyBytes,
diff --git a/src/simulate/utils.ts b/src/simulate/utils.ts
index 7a12895f..f2807b22 100644
--- a/src/simulate/utils.ts
+++ b/src/simulate/utils.ts
@@ -20,9 +20,9 @@ import { coins } from '@cosmjs/amino';
 import { IndexerClient } from 'src/utils/apis/IndexerClient';
 
 export class SimulateUtils {
-  public static makeBodyBytes(messages: any[]): Uint8Array {
+  public static makeBodyBytes(messages: any[], prefix: string): Uint8Array {
     const signedTxBody = {
-      messages: this.anyToEncodeMsgs(messages),
+      messages: this.anyToEncodeMsgs(messages, prefix),
       memo: '',
     };
     const signedTxBodyEncodeObject: TxBodyEncodeObject = {
@@ -38,6 +38,7 @@ export class SimulateUtils {
     safeAddress: string,
     safePubkey: any,
     totalOwner: number,
+    denom: string,
   ): Promise<Uint8Array> {
     const indexerClient = new IndexerClient();
     let sequence = 0;
@@ -49,7 +50,7 @@ export class SimulateUtils {
       console.log(error);
     }
 
-    const defaultFee = SimulateUtils.getDefaultFee();
+    const defaultFee = SimulateUtils.getDefaultFee(denom);
     const signers: boolean[] = Array(totalOwner).fill(false);
 
     const signerInfo: SignerInfo = {
@@ -88,11 +89,14 @@ export class SimulateUtils {
     return Uint8Array.from(TxRaw.encode(newTxRaw).finish());
   }
 
-  public static getDefaultMsgs(safeAddress: string): MsgSendEncodeObject[] {
+  public static getDefaultMsgs(
+    safeAddress: string,
+    denom: string,
+  ): MsgSendEncodeObject[] {
     const msgSend: MsgSend = {
       fromAddress: safeAddress,
-      toAddress: 'aura1522aavcagyrahayuspe47ndje7s694dkzcup6x',
-      amount: coins(1, 'utaura'),
+      toAddress: safeAddress,
+      amount: coins(1, denom),
     };
     const msg: MsgSendEncodeObject = {
       typeUrl: '/cosmos.bank.v1beta1.MsgSend',
@@ -101,7 +105,7 @@ export class SimulateUtils {
     return [msg];
   }
 
-  static getDefaultFee(denom = 'utaura'): StdFee {
+  static getDefaultFee(denom): StdFee {
     return {
       amount: coins(1, denom),
       gas: '200000',
@@ -126,10 +130,10 @@ export class SimulateUtils {
       },
     ]
    */
-  static anyToEncodeMsgs(messages: any[]): EncodeObject[] {
+  static anyToEncodeMsgs(messages: any[], prefix: string): EncodeObject[] {
     const aminoTypes = new AminoTypes({
       ...createBankAminoConverters(),
-      ...createStakingAminoConverters('aura'),
+      ...createStakingAminoConverters(prefix),
       ...createDistributionAminoConverters(),
       ...createGovAminoConverters(),
     });
diff --git a/src/simulate/wallet.simulate.ts b/src/simulate/wallet.simulate.ts
index 5fe3822a..9118c4cb 100644
--- a/src/simulate/wallet.simulate.ts
+++ b/src/simulate/wallet.simulate.ts
@@ -42,7 +42,7 @@ export class WalletSimulate {
       const safe = new SafeSimulate(
         this.ownerWallets.slice(0, i),
         i,
-        this.chain.prefix,
+        this.chain,
       );
 
       // save to map
@@ -74,6 +74,7 @@ export class WalletSimulate {
         messages,
         safeInfo.safeAddress,
         safePubkey,
+        this.chain.prefix,
       );
 
     // build txBytes