If you long press on the notification, a little info icon pops up and tapping that will take you to the App details page. That's an easy way to verify the packa

If you long press on the notification, a little info icon pops up and tapping that will take you to the App details page. That's an easy way to verify the package name and version. If it is a sketchy app and not Google Play Services, kill it with fire! (FWIW it was Google Play Services for me)