And yes, when you setup the “Signing” then you can upload the APK on Play Store and it works without the OBB. 
When you need a complete Tutorial for this maybe i can help… but my english is not so good 
And yes, when you setup the “Signing” then you can upload the APK on Play Store and it works without the OBB.
When you need a complete Tutorial for this maybe i can help… but my english is not so good