using System;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string json = @"{ 

            ""email"" : ""joe@example.org"",

            ""last-login"" : ""2015-07-09T08:38:49-07:00"",

        }";

        OneLoginUser user = JsonConvert.DeserializeObject<OneLoginUser>(json);

        Console.WriteLine(user.Email);

        Console.WriteLine(user.LastLogin);

    }

}

​

class OneLoginUser

{

    [JsonProperty("email")]

    public string Email { get; set; }

    [JsonProperty("last-login")]

    public DateTimeOffset LastLogin { get; set; }

}

​

​