HOW TO UPDATE/CHANGE ACTION REQUIRED EMAIL NOTIFICATION SUBJECT LINE FOR A JOURNEY TASK

We have configured Onboarding Journey task for new hires to complete/go through certain Task. And the Task is Manual Task and we have used processing mode as "BI Publisher based Notification" to send out the Action Required email notifications to performer.
we are getting email notification with subject like "Action Required : Task << Task Name >> Allocated for <<Emp Name>>, <<Emp#>> was assigned to you"

Is it possible to update/change subject line format to remove/add additional attributes, if yes, please provide steps/details on this requirement.