You don't need to sign anything just turn off play protect with 1 adb command:
adb shell settings get global package_verifier_user_consent
adb shell settings put global package_verifier_user_consent -1 # disable Play Protect
You don't need to sign anything just turn off play protect with 1 adb command:
adb shell settings get global package_verifier_user_consent
adb shell settings put global package_verifier_user_consent -1 # disable Play Protect