diff --git a/server/web3sign/controllers/benftmall_trans.js b/server/web3sign/controllers/benftmall_trans.js
index 93c9fc6..40e06c2 100644
--- a/server/web3sign/controllers/benftmall_trans.js
+++ b/server/web3sign/controllers/benftmall_trans.js
@@ -83,8 +83,8 @@ async function buyPlanet(session) {
       }
     }
     const signature = await bc.soliditySha3Sign(
-      account,
       currency,
+      account,
       ...nftAddress,
       ...signArr
     );