Web API, C#, Json Objects, Views - json

Question

I have some issues with displaying data as a Json object in this ASP.NET Web API project. It is my first try, I don't have Views, I am gonna use Postman for testing. Can you give me some diretions how to display the model as an Json Object?
//UserController
public class UsersController : ApiController
{
private LearnToLearnContext db = new LearnToLearnContext();
private BaseRepository<Users> _repository = null;
public UsersController()
{
this._repository = new BaseRepository<Users>();
}
// GET: api/Users
[ResponseType(typeof(Users))]
public IHttpActionResult GetUsers()
{
var user = _repository.GetAll();
var bindingModel = Mapper.Map<UsersBindingModels>(user);
return Ok(bindingModel);
}
}
//UserModel
public class Users
{
[Key]
public int Id { get; set; }
[Required]
public string Name { get; set; }
[Unique]
[Required]
public string Email { get; set; }
[Required]
public string Password { get; set; }
public bool IsTeacher { get; set; }
public virtual List<Courses> Courses { get; set; }
}
//UserBindingModel
public class UsersBindingModels
{
[Required]
public string name { get; set; }
[Unique]
[Required]
public string email { get; set; }
[Required]
public string password { get; set; }
public bool isTeacher { get; set; }
public virtual List<Courses> Courses { get; set; }
}