Subscribing to a public profiles event posts

My profile page, has two things that pop up only if it’s a public profile for searchable businesses. The one two things is the website and button that says get notified……

On the profile I wanted to create the button that says get notified on any events posted. And when a logged in user clicks that they are subscribed to any posts that public profile does…

And I want the event approval screen + icon to trigger a notification to the user who subscribed to the button “get notified on any events posted” for that particular public business (because remember the button to subscribe basically only appears in a public profile).

Willing to pay someone to show me how too! Thanks