using System;

​

public class Program

{

    public static void Main()

    {

        var json = "{\r\n  \"id\": \"58e50b82-50b1-4f29-a2e8-a9a544013255\",\r\n  \"timestamp\": \"2018-06-20T18:00:12.935Z\",\r\n  \"lang\": \"pt-br\",\r\n  \"result\": {\r\n    \"source\": \"agent\",\r\n    \"resolvedQuery\": \"me conte uma novidade\",\r\n    \"action\": \"\",\r\n    \"actionIncomplete\": false,\r\n    \"parameters\": {\r\n      \"news\": \"novidade\"\r\n    }\r\n}\r\n}";

        dynamic obj = Newtonsoft.Json.JsonConvert.DeserializeObject(json);

        Console.WriteLine(obj.id);

        Console.WriteLine(obj.timestamp);

    }

}