using Newtonsoft.Json;

using System;

using System.Collections.Generic;

​

public class Obj

{

    public D D { get; set; }

}

​

public class D

{

    public string Media { get; set; }

    public string Lote { get; set; }

    public string Sinal { get; set; }

    public List<Opcao> Opcao { get; set; }

}

​

public class Opcao

{

    public string __type { get; set; }

    public string Leitura { get; set; }

    public string Producao { get; set; }

}

​

public class Program

{

    public static void Main()

    {

        string json = @"{'d':{'media':12.108320606149539,'lote':'','Opcao':[{'__type':'Model','leitura':70,'producao':1579981660130}],'sinal':'Up'}}";

​

        Obj myObj = new Obj();

​

        myObj = JsonConvert.DeserializeObject<Obj>(json);

        Console.WriteLine(myObj.D.Media);

    }

}