using System;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {   

        //var jsonString = "{ someBooleanProperty: \"True\" }"; // <- Would work

        //var jsonString = "{ someBooleanProperty: \"true\" }"; // <- Would work

        //var jsonString = "{ someBooleanProperty: True }"; // <- Would NOT work

        var jsonString = "{ someBooleanProperty: true }"; // <- This is preferred

        var result = JsonConvert.DeserializeObject<SomeClassType>(jsonString);

        Console.WriteLine(string.Format("Value of SomeBooleanProperty: {0}", result.SomeBooleanProperty));

    }   

    public class SomeClassType

    {

        public bool SomeBooleanProperty { get; set; }

    }   

}