using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {       

        JObject projectOuter = new JObject(new JProperty("project", new JObject()));

        JObject projectInner = new JObject(new JProperty("project", new JObject()));

​

/// we can now reference it as follows just match the type

​

        projectInner["project"].Value<JObject>().Add(new JProperty("currentProjectPhaseId", 123));

        projectOuter["project"] = projectInner;

        Console.WriteLine((projectOuter));

    }   

}