title: Passing user id with AuthController
body: <p>I just made simple authentication app using aqueduct as a back end. I used codes from aqueduct documentation pages for login and registering. When I login with this code in backend</p>
  
  <pre><code> router
      .route('/auth/token')
      .link(() =&gt; AuthController(authServer));
  </code></pre>
  
  <p>I get back token, token type and expiration date, Is there any chance to also pass userId? Or do I have to create my own controller to do that?</p>
  
  <p>UPDATE
  or how can I in my backend to save user id when saving the data</p>
  
  <pre><code>  @Operation.post()
    Future&lt;Response&gt; addData(@Bind.body(ignore: ['id']) Data newData) async {
      final query = Query&lt;Data&gt;(context)..values = newData;
      final insertData = await query.insert();
      return Response.ok(insertData);
    }
  </code></pre>