diff --git a/OpenAuth.WebApi/Model/mqtt/MqttHostedService.cs b/OpenAuth.WebApi/Model/mqtt/MqttHostedService.cs
index e0c2955..24d3524 100644
--- a/OpenAuth.WebApi/Model/mqtt/MqttHostedService.cs
+++ b/OpenAuth.WebApi/Model/mqtt/MqttHostedService.cs
@@ -1,6 +1,8 @@
 using Infrastructure.CloudSdk.mqttmessagecenter;
+using NPOI.SS.Formula.Functions;
 using NuGet.Packaging;
 using OpenAuth.App.ServiceApp;
+using System.Security.Cryptography;
 
 namespace OpenAuth.WebApi.Model.mqtt
 {
@@ -47,6 +49,10 @@ namespace OpenAuth.WebApi.Model.mqtt
                     $"sys/product/{gateway}/status"
                 });
             }
+            topics.AddRange(new[]
+            {
+                $"thing/product/1581F8HGX254V00A0BUY/osd"
+            });
             await _mqttCenter.ConnectAndSubscribeAsync(topics.ToArray());
         }