using System;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        var json = "{\"rate\":50,\"information\":{\"height\":70,\"ssn\":43,\"name\":\"andrew\"}}";

        dynamic obj = JsonConvert.DeserializeObject(json);

        Console.WriteLine("rate: {0}. ssn: {1}", obj.rate, obj.information.ssn);

    }

}