diff --git a/modules/mogo-module-v2x/src/main/java/com/mogo/module/v2x/network/V2XRefreshModel.java b/modules/mogo-module-v2x/src/main/java/com/mogo/module/v2x/network/V2XRefreshModel.java
index 7fa8ad9bae..b8708c3a82 100644
--- a/modules/mogo-module-v2x/src/main/java/com/mogo/module/v2x/network/V2XRefreshModel.java
+++ b/modules/mogo-module-v2x/src/main/java/com/mogo/module/v2x/network/V2XRefreshModel.java
@@ -596,16 +596,7 @@ public class V2XRefreshModel {
                                         String helpId) {
         if (mV2XApiService != null) {
             final Map<String, Object> map = new ParamsProvider.Builder(mContext).build();
-            String json = new StringBuilder()
-                    .append("{")
-                    .append("\"id\":").append(id)
-                    .append(",")
-                    .append("\"sn\":").append(Utils.getSn())
-                    .append(",")
-                    .append("\"status\":").append(status)
-                    .append(",")
-                    .append("\"helpId\":").append(helpId)
-                    .append("}").toString();
+            String json = "{" + "\"id\":\"" + id + "\"," + "\"sn\":\"" + Utils.getSn() + "\"," + "\"status\":" + status + "," + "\"helpId\":\"" + helpId + "\"}";
             map.put("data", json);
             mV2XApiService.manualMarkingTrafficJam(map).subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())