Welcome to Android Central! Remember that many apps will periodically ping your Google account to refresh data, even if you're not actively using them, so this kind of thing is normal.
The "com.motorola" part tells you that this is a legitimate Moto system app.
The app may have something to do with Xfinity Mobile. Certain system apps related to mobile wireless providers can be preinstalled on phones, even if they were unlocked and "carrier agnostic," probably in case you decide to activate the phone on those providers.