I heard 2,900,000AED from a very close source. The one off remuneration was given in exchange for his services in the 18 months period across 2020-2021 and to keep him quiet about the career terminating decisions made over this time.
I wouldn't like too know how much he would get if he actually did a good job. Often think of some of the china flight volunteers in feb 2020 who got the boot and didn't get asked back!