title: Google play API returns error
body: <p>i am getting the same issue as described in <a href="https://stackoverflow.com/questions/11115381/unable-to-get-the-subscription-information-from-google-play-android-developer-ap">this post</a></p>
  
  <p>. we have used almost exactly the same code. i have tried both with Client ID and Email address of the google service account in below mehotd</p>
  
  <pre><code>setServiceAccountId(GOOGLE_SERVICE_CLIENT_EMAIL) OR
  setServiceAccountId(GOOGLE_CLIENT_ID)
  </code></pre>
  
  <p>error changes with the change in a/c id. if i use client id, error is</p>
  
  <blockquote>
    <p>400 Bad Request { "error" : "invalid_grant" }</p>
  </blockquote>
  
  <p>and if i use service email id, error is</p>
  
  <pre><code>401 Unauthorized {   
  "code" : 401,   "errors" : [ {
      "domain" : "androidpublisher",
      "message" : "This developer account does not own the application.",
      "reason" : "developerDoesNotOwnApplication"   } ],   "message" : "This developer account does not own the application." }
  </code></pre>
  
  <p>any idea?</p>