How to Create Unread Message Notifications for an App

Hi everyone,

I am trying to create some user notifications that show a feed of recent activity like messages or other actions that have been done, similar to the example below:

However I don’t know where to get started in order to develop a feature like this. Can anyone provide some guidance with regards to the table structure that I should have in order to enable this type of functionality.

Should I create a new table for notifications and then everytime a certain action happens, I would push it to the notification table and have a read/unread field in there to identify new notifications? or would you do it in a different way?

Your feedback is much appreciated.