how to publish custom story

[caner köseren]

I created a story named test_story on Facebook with there properties :

                 Action Type : Login
                 Object Type : Site

I just want to publish this story when the user logs into the site.

My question is that: How do i use the below code piece to trigger the story? Because this publish method does not trigger the action.
      FacebookType publishMessageResponse = facebookClient.publish("me/feed", FacebookType.class, Parameter.with("Action", "login"),Parameter.with("Object", "Site"));
 
Thanks