Google Play Developer API: “startTimeMillis” is updated when it should not

Question

I am developing an application with in-app subscriptions. On our servers, I check the validity of each subscription through the Google Play Developer API.

As stated

Answer 1

Had similar issue and found that:

1. When user cancels the subscription, startTimeMillis won't be changed, only autoRenewing changed to false

2. If the user subscribes again after the cancelation, google will send you a new subscription token, but when querying with the previous token, the response would be changed to the same as the new token, i.e. startTimeMillis would be changed