title: How do I add impersonation in MVC ASP.NET Identity 2.0
body: <p>I am wondering how I add user impersonation on mvc identity 2.0, I seen some people using this:             </p>
  
  <pre><code>FormsAuthentication.SignOut();
  FormsAuthentication.SetAuthCookie(user.UserName, false);
  </code></pre>
  
  <p>This wont work for me it wont even sign out I use : </p>
  
  <pre><code>AuthenticationManager.SignOut() 
  </code></pre>
  
  <p>So how do I go along doing this I have admin panel what lists users, I get the userId or userName, what exactly do I have to do?  I have never used Claims so I dont understand it much I wont need to revert back to user they can just logout for now.</p>