title: Redirect user to the Subscription page in the playstore
body: <p>I've been reading this website : 
  <a href="http://developer.android.com/google/play/billing/billing_subscriptions.html" rel="noreferrer">http://developer.android.com/google/play/billing/billing_subscriptions.html</a>
  Because I read that "Currently, the In-app Billing API does not provide support for programatically canceling subscriptions from inside the purchasing app", I would like to redirect the user to this page to manage his own subscription.</p>
  
  <p>I'm not able to find how to open the subscription page from an application.
  I was thinking about opening it like a external link with :</p>
  
  <pre><code>Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
  startActivity(browserIntent);
  </code></pre>
  
  <p>But I don't even know the link I need to put in... -_-</p>
  
  <p>Thanks in advance for your answer! :)</p>