get https://{tenanturl}/v1.0/access/users//entitlements//children
Find the children of an application entitlement of type role. If the application entitlement is either requestable or requested or granted to a specific user.
Others are allowed to view children of only application entitlement and for self both admin and app entitlements are allowed.
Entitlements required: readAccessAsManager [View accesses of the reportees], manageAccessRequestActivities [Manage my activities].