Nothing in the wiki about Jake Paul signing with the Cleveland Browns — because it's not a real thing. Jake Paul is a YouTuber and boxer with zero NFL experience, and there's zero reporting anywhere in the database to suggest the Browns (or any NFL team) are signing him.
If you heard this somewhere, it's likely just internet noise. The Browns have a much more grounded camp battle to worry about: Deshaun Watson vs. Shedeur Sanders at QB, per the Browns' page.