nostr:nevent1qqs0f0a9ty2rjc5wfqdgt6jh3fj8en0f8rqephfdtud3a6l76uzq8vcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtczyrn2fljnhkcnueuq9fmuapu0d3x7lux43huax9p2xvaeypq64846sqcyqqqqqqgyuz86z

Its's an android restrictions, if you want to app to be constantly active in the background, Android forces your app to show a notification. I supposed is to keep the user aware of it. You can always disable it on android's notification center.