修改数据类型

OpenAuth.WebApi/Model/mqtt/ThingOsdHandler.cs

@@ -34,7 +34,7 @@ namespace OpenAuth.WebApi.Model.mqtt
                 Topic = topic,
                 Method = root["method"]?.ToString() ?? "",
                 CreateTime = DateTime.Now,
-                Data = root.ToString()
+                Data = payload
             });
             var sub_device = root["data"]?["sub_device"]?.ToString() ?? "";
             if (!string.IsNullOrEmpty(sub_device))