using System;

using Newtonsoft.Json;

​

public class ApiResponse

{

    public int Status { get; set; }

    public string Message { get; set; }

}

​

public interface IApiResponse<out T> 

{

    T Result { get; }

}

​

public class ApiResponse<T> : ApiResponse, IApiResponse<T>

{

    public T Result { get; set; }

}

​

public class MyDTO {

    public string Text { get; set; }

}

​

public class Program

{

    public static void Main()

    {

        object data = new ApiResponse<MyDTO> { Result = new MyDTO { Text = "test" } };

        var payload = ((IApiResponse<object>)data).Result;

        Console.WriteLine(JsonConvert.SerializeObject(payload));        

        var serialized = JsonConvert.SerializeObject(data);     

        var deserialized = (ApiResponse<MyDTO>)JsonConvert.DeserializeObject(serialized, typeof(ApiResponse<MyDTO>));

        Console.WriteLine(deserialized.Result.GetType());       

        Console.WriteLine(JsonConvert.SerializeObject(deserialized.Result));        

    }

}