using System;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        OuterObject outer = new OuterObject

        {

            MyValue = new MyValue(4)

        };

​

        string json = JsonConvert.SerializeObject(outer);

        Console.WriteLine(json);

        Console.WriteLine();

​

        var deserializedOuter = JsonConvert.DeserializeObject<OuterObject>(json);

        Console.WriteLine(deserializedOuter.MyValue.Value);

    }

}

​

public class OuterObject

{

    [JsonProperty("propertyOfTypeMyValue")]

    public MyValue MyValue { get; set; }

}

​

[JsonConverter(typeof(MyValueConverter))]

public class MyValue

{

    public MyValue(int v)

    {

        Value = v;

    }

​

    public int Value { get; private set; }

}

​

public class MyValueConverter : JsonConverter

{

    public override bool CanConvert(Type objectType)

    {

        return objectType == typeof(MyValue);

    }

​

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

    {

        if (reader.TokenType == JsonToken.Null) 

            return null;

        if (reader.TokenType == JsonToken.Integer) 

            return new MyValue(Convert.ToInt32(reader.Value));

        throw new JsonException("Unexpected token type: " + reader.TokenType);

    }

​

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

    {

        writer.WriteValue(((MyValue)value).Value);

    }

}

​