This is likely a recommended notification. You can turn these off from the menu > Settings > Notifications > uncheck "Recommended videos". Hope this helps.
@TeamYouTube why am I getting notifs for @Sernandoe when I'm not even subbed? I've maybe watched one of his vids, yet I'm getting notifs for him?
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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