title: Get Google Android Subscription API expiration time for a subscription token.
body: <p>When I make the following request, Google only gives error 503, and won't provide any useful information. </p>
  
  <p>I'm following the documentation here: <a href="https://developers.google.com/android-publisher/v1/purchases/get">https://developers.google.com/android-publisher/v1/purchases/get</a></p>
  
  <p>The authorization token is recently refreshed (automatically). (Normally it says 401 when it's stale.)</p>
  
  <pre><code>[root@308321 cgi-bin]# wget -dSO- 'https://www.googleapis.com/androidpublisher/v1/applications/com.kizbit.pairfinder/subscriptions/subscription99/purchases/vkorjajxnjfyhxbftpymwfox?access_token=ya29.AHES6ZSnxLdOVf2QWrX96VbpDMdUKlHFXJOFEdHM_f_ErQlL'
  Setting --server-response (serverresponse) to 1
  Setting --output-document (outputdocument) to -
  DEBUG output created by Wget 1.12 on linux-gnu.
  
  --2012-07-05 00:09:46--  https://www.googleapis.com/androidpublisher/v1/applications/com.kizbit.pairfinder/subscriptions/subscription99/purchases/vkorjajxnjfyhxbftpymwfox?access_token=ya29.AHES6ZSnxLdOVf2QWrX96VbpDMdUKlHFXJOFEdHM_f_ErQlL
  Resolving www.googleapis.com... 2001:4860:b007::5f, 74.125.142.95
  Caching www.googleapis.com =&gt; 2001:4860:b007::5f 74.125.142.95
  Connecting to www.googleapis.com|2001:4860:b007::5f|:443... connected.
  Created socket 3.
  Releasing 0x0000000000cc9370 (new refcount 1).
  Initiating SSL handshake.
  Handshake successful; connected socket 3 to SSL handle 0x0000000000cd8e70
  certificate:
    subject: /C=US/ST=California/L=Mountain View/O=Google Inc/CN=*.googleapis.com
    issuer:  /C=US/O=Google Inc/CN=Google Internet Authority
  X509 certificate successfully verified and matches host www.googleapis.com
  
  ---request begin---
  GET /androidpublisher/v1/applications/com.kizbit.pairfinder/subscriptions/subscription99/purchases/vkorjajxnjfyhxbftpymwfox?access_token=ya29.AHES6ZSnxLdOVf2QWrX96VbpDMdUKlHFXJOFEdHM_f_ErQlL HTTP/1.0
  User-Agent: Wget/1.12 (linux-gnu)
  Accept: */*
  Host: www.googleapis.com
  Connection: Keep-Alive
  
  ---request end---
  HTTP request sent, awaiting response...
  ---response begin---
  HTTP/1.0 503 Service Unavailable
  Content-Type: application/json; charset=UTF-8
  Date: Thu, 05 Jul 2012 04:09:56 GMT
  Expires: Thu, 05 Jul 2012 04:09:56 GMT
  Cache-Control: private, max-age=0
  X-Content-Type-Options: nosniff
  X-Frame-Options: SAMEORIGIN
  X-XSS-Protection: 1; mode=block
  Server: GSE
  
  ---response end---
  
    HTTP/1.0 503 Service Unavailable
    Content-Type: application/json; charset=UTF-8
    Date: Thu, 05 Jul 2012 04:09:56 GMT
    Expires: Thu, 05 Jul 2012 04:09:56 GMT
    Cache-Control: private, max-age=0
    X-Content-Type-Options: nosniff
    X-Frame-Options: SAMEORIGIN
    X-XSS-Protection: 1; mode=block
    Server: GSE
  Closed 3/SSL 0x0000000000cd8e70
  2012-07-05 00:09:47 ERROR 503: Service Unavailable.
  </code></pre>