Reactivity out of the box, for every rest controller

If I’m on the list page
And a row gets updated by another user

What are the method of pushing that update

Scenario 1

Suppose I am on lis job page.
I click on job id 1

Then I am editing Job Id 1

While I am editing the data, some other user updated the Job ID 1 in background

Whats the best way to show this to user that the Data is already updated. ?