using System;

using System.Security.Claims;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = @"{

                ""Issuer"" : ""LOCAL AUTHORITY"",

                ""OriginalIssuer"" : ""LOCAL AUTHORITY"",

                ""Type"" : ""http://my.org/ws/2015/01/identity/claims/mytype"",

                ""Value"" : ""myvalue"",

                ""ValueType"" : ""http://www.w3.org/2001/XMLSchema#string""

            }";

        Claim claim = JsonConvert.DeserializeObject<Claim>(json, new ClaimConverter());

        Console.WriteLine(claim.Type);

        Console.WriteLine(claim.Value);

    }

}

​

class ClaimConverter : JsonConverter

{

    public override bool CanConvert(Type objectType)

    {

        return (objectType == typeof(System.Security.Claims.Claim));

    }

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

    {

        JObject jo = JObject.Load(reader);

        string type = (string)jo["Type"];

        string value = (string)jo["Value"];

        string valueType = (string)jo["ValueType"];

        string issuer = (string)jo["Issuer"];

        string originalIssuer = (string)jo["OriginalIssuer"];

        return new Claim(type, value, valueType, issuer, originalIssuer);

    }

    public override bool CanWrite

    {

        get { return false; }

    }

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

    {

        throw new NotImplementedException();

    }

}

​