public class User
{
    public User()
    {
        Equipments = new HashSet<Equipment>();
        Balances = new HashSet<Balance>();
        Subscriptions = new HashSet<Subscription>();
    }

    public long Id { get; set; }
    public string LastName { get; set; }

    public DateTime DOB { get; set; }

    public long AddressId { get; set; }
    public Address Address { get; set; }

    public ICollection<Equipment> Equipments { get; set; }

    public ICollection<Balance> Balances { get; set; }

    public ICollection<Subscription> Subscriptions { get; set; }
}

public class Equipment
{
    public long Id { get; set; }
    public string Model { get; set; }
    public int StateId { get; set; }

    public long UserId { get; set; }

    public User User { get; set; }
}

public class Balance
{
    public Balance()
    {
        Operations = new HashSet<BalanceOperation>();
    }
    public long Id { get; set; }
    public decimal Amount { get; set; }
    public int CurrencyId { get; set; }

    public long UserId { get; set; }

    public User User { get; set; }

    public ICollection<BalanceOperation> Operations { get; set; }
}

public class BalanceOperation
{
    public long Id { get; set; }

    public DateTime OperationDate { get; set; }

    public long BalanceId { get; set; }
    public Balance Balance { get; set; }
}

public class Address
{
    public int Id { get; set; }
    public string City { get; set; }
    public int HouseNumber { get; set; }
}

public class Subscription
{
    public long Id { get; set; }

    public int ServiceId { get; set; }

    public bool IsActive { get; set; }

    public long UserId { get; set; }

    public User User { get; set; }
}

int includes = (int)(IncludeEnum.Adress | IncludeEnum.Subscriptions);
UserInfo userInfo = _service.GetUserInfo(id, includes);