diff --git a/app/api/controller/PayController.php b/app/api/controller/PayController.php
index 91dbf88df..eebfb3214 100644
--- a/app/api/controller/PayController.php
+++ b/app/api/controller/PayController.php
@@ -33,7 +33,7 @@ class PayController extends BaseApiController
         Cache::set('logE1'.time(),$result['event_type']??'');
         if ($result && $result->event_type == 'TRANSACTION.SUCCESS') {
             $ciphertext = $result->resource['ciphertext'];
-            Cache::set('logc'.time(),$result->resource['ciphertext']);
+            Cache::set('logc'.time(),json_decode($result->resource['ciphertext'],true));
             if ($ciphertext['trade_state'] === 'SUCCESS') {
                 $attach = $ciphertext['attach'];
                 switch ($attach) {