Hey @dchouksey89,
not exactly what you are looking for but might be still of some interest.
I have implemented a plugin which allows me to call a user when hovering 
I did this by adding a custom web-item to the jira web-section 'system.user.hover.links’
and then binding my functionality to the web-item
You can read more about webitems here: Link to developer.atlassian.com about webitems