using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string json1 = @"

        {

            ""CID"": ""13579"",

            ""jsonrpc"": ""something"",

            ""id"": ""24680""

        }";

        Account account = JsonConvert.DeserializeObject<Account>(json1);

        string json2 = @"

        {

            ""mail"": [ ""abc@example.com"", ""def@example.org"" ],

            ""uid"": [ ""87654"", ""192834"" ],

            ""userPassword"": [ ""superSecret"", ""letMeInNow!"" ]

        }";

        JsonConvert.PopulateObject(json2, account);

        Console.WriteLine("CID: " + account.CID);

        Console.WriteLine("jsonrpc: " + account.jsonrpc);

        Console.WriteLine("id: " + account.id);

        Console.WriteLine("mail: " + string.Join(", ", account.mail));

        Console.WriteLine("uid: " + string.Join(", ", account.uid));

        Console.WriteLine("userPassword: " + string.Join(", ", account.userPassword));

    }

}

​

public class Account

{

    public string CID { get; set; }            

    public string jsonrpc { get; set; }

    public string id { get; set; }

    public List<string> mail { get; set; }

    public List<string> uid { get; set; }

    public List<string> userPassword { get; set; }            

}

​