title: Recover lost purchase token for a subscription
body: <p>I am having a major problem right now, we are having instances where our server is unsubscribing users to our application (not in Google Play) and deleting our purchase tokens we receive from Google Play after a successful purchase. We have taken care of them not getting deleted any more but I need to handle the ones we have already lost. </p>
  
  <p>So my question is, Is there any way to recover the purchase token? (Mainly in the V2 APIs) </p>