Android : Determine game was launched from Google Play Games App

We are developing an Android game. One way to launch our game is through the "Google Play Games" app (the games catalog) that can be downloaded from Google Play.

When launching the game from the catalog (by selecting its page and hitting "Play"), the game starts, but there are no extras or any further data placed in the intent.

There is no way i can think of that can help me determine that the game was launched from the "Play Games" app.

Is there any way to determine this information? How can we know that we were launched from there ?