Is there an approval workflow for Roles?

We are trying to find out when you assign a role to a user is there a way to trigger or attach a workflow? We are looking into modifying our process.

Current State:

Team members request a role via ServiceNow Ticket

Processor sends emails to approvers gain approval

Processor uploads approvals to ServiceNow ticket

Processor then manually adds roles.

Desired State:

Team Member requests role via email/ServiceNow Ticket

Processor adds requested role

Approval workflow is triggered in the system for the role (thereby eliminating the need for processor to email for approval)