How do I parse Json?

I'm getting a JSON string from the WebSocket object but I can't seem to parse it I've tried loading the JSON into an array but I can't seem to figure out what's wrong.

Here is the text I get from the WebSocket Object:

{"ChatUsernameString":"Camkau","ChatmessageString":"I like cookies"}

Add JSON object to the project and use JSON Parse action.

Check out the official JSON template, it shows how to work with JSON in Construct