title: How to check validity of a user's subscription on Android with a SOAP web service?
body: <p>I know the best way to securely check this is using the Google Play Developer API and storing data on my own server. </p>
  
  <p>However, the problem is that I have a SOAP web service, and the Google Play API is REST-based.  Since these can't interact with one another, I'm at a loss for what to do.</p>