ASP.NET MVC Authentication with FormsAuthenticationTicket (maybe)

I'm a PHP guy, but in the process of creating a login page in ASP.NET MVC4. I am expecting to keep the user ID, username and roles in the session. So far I am doing the following. If I am correct this saves a cookie with the username.

[HttpPost]
    public ActionResult Login(Models.UserLoginModel user)
    {
        if (ModelState.IsValid)
        {
            Models.User u = new Models.User();
            if (u.IsValid(user.Username, user.Password))
            {
                FormsAuthentication.SetAuthCookie(user.Username, user.RememberMe);

                return RedirectToAction("Index", "Accounts");
            }
            else
            {
                ModelState.AddModelError("", "Login data is incorrect!");
            }
        }
        return View(user);
    }

      

        
        
        
      

    

My interest is to store more information and control checkout times. I was advised and asked to use the class FormAuthenticationTicket

. I replaced FormsAuthentication.SetAuthCookie(user.Username, user.RememberMe);

with

FormsAuthenticationTicket ticket = new FormsAuthenticationTicket
(
    1, 
    user.Username, 
    DateTime.Now, 
    DateTime.Now.AddMinutes(30), 
    false, 
    "Some User Data", 
    FormsAuthentication.FormsCookiePath
);
Response.Cookies.Add
(
    new HttpCookie
    (
        FormsAuthentication.FormsCookieName, 
        FormsAuthentication.Encrypt(ticket)
    )
);

      

        
        
        
      

    

It looks cool, I haven't tested it but had flexibility. But the problem is how I could get this information.

How can I get this information back and determine if the user is logged in as well as other necessary information stored internally FormsAuthenticationTicket

.

Thanks in advance.