diff --git a/server/web3sign/controllers/activate721nft.js b/server/web3sign/controllers/activate721nft.js
index 0ef74ad..b8d906d 100644
--- a/server/web3sign/controllers/activate721nft.js
+++ b/server/web3sign/controllers/activate721nft.js
@@ -83,8 +83,16 @@ async function activate721Nft(session) {
         ['trans_id', transId]
       ]);
     const nonce = transId;
-    const tokenIds = [tokenId, 1];
-    utils.arrayToStrings(tokenIds);
+    const nftList = [
+      {
+        'tokenId': tokenId,
+        'isMint': true
+      }
+    ];
+    let nftListStr = '';
+    utils.forEach((item) => {
+      nftListStr += item['tokenId'].toString() + '1';
+    });
     const signature = await bc.soliditySha3Sign(
       account,
       nftAddress,
@@ -92,9 +100,8 @@ async function activate721Nft(session) {
       netId,
       nowTime,
       nonce,
-      ...tokenIds
+      ...nftListStr
     );
-    const nftList = [];
 
     let data = instance.methods.unlockOrMint
     (