diff --git a/web/documentserver-example/csharp-mvc/Helpers/TrackManager.cs b/web/documentserver-example/csharp-mvc/Helpers/TrackManager.cs
index ad04b2a7..b05f44c0 100644
--- a/web/documentserver-example/csharp-mvc/Helpers/TrackManager.cs
+++ b/web/documentserver-example/csharp-mvc/Helpers/TrackManager.cs
@@ -76,7 +76,9 @@ namespace OnlineEditorsExampleMVC.Helpers
 
                 if (token != null && !token.Equals(""))  // invalid signature error
                 {
-                    fileData = (Dictionary<string, object>)jss.Deserialize<Dictionary<string, object>>(token)["payload"];
+                    fileData = jss.Deserialize<Dictionary<string, object>>(token);
+                    if (fileData.ContainsKey("payload"))
+                        fileData = (Dictionary<string, object>)fileData["payload"];
                 }
                 else
                 {
diff --git a/web/documentserver-example/csharp/TrackManager.cs b/web/documentserver-example/csharp/TrackManager.cs
index 520bca6b..f1e0ec10 100644
--- a/web/documentserver-example/csharp/TrackManager.cs
+++ b/web/documentserver-example/csharp/TrackManager.cs
@@ -78,7 +78,9 @@ namespace OnlineEditorsExample
 
                 if (token != null && !token.Equals(""))  // invalid signature error
                 {
-                    fileData = (Dictionary<string, object>)jss.Deserialize<Dictionary<string, object>>(token)["payload"];
+                    fileData = jss.Deserialize<Dictionary<string, object>>(token);
+                    if (fileData.ContainsKey("payload"))
+                        fileData = (Dictionary<string, object>)fileData["payload"];
                 }
                 else
                 {