diff --git a/server/web3service/controllers/jwt.js b/server/web3service/controllers/jwt.js
index a610463..8e3f5d3 100644
--- a/server/web3service/controllers/jwt.js
+++ b/server/web3service/controllers/jwt.js
@@ -12,24 +12,26 @@ function asyncVerify(jwksUri, data) {
       err: null,
       decoded: null
     };
-    function getKey(header, cb ) {
+    function getKey(header, cb) {
+      if (jwksUri in jwksKeyHash) {
+        const c = jwksKeyHash[jwksUri];
+        cb(null, c['key']);
+        return;
+      }
       const client = jwksClient({
         jwksUri: jwksUri
       });
-      console.log(header);
       client.getSigningKey(header.kid, function(err, key) {
-        console.log(err);
-        console.log(key);
         const signingKey = key.publicKey || key.rsaPublicKey;
         if (!err) {
           jwksKeyHash[jwksUri] = {
             'key': key,
-            'last_refresh_time': utils.getUtcTime()
+            'lastRefreshTime': utils.getUtcTime()
           };
         }
         cb(null, signingKey);
       });
-    };
+    }
     jwt.verify(data, getKey, function(err, decoded) {
       console.log(err);
       console.log(decoded);