This really isn't how modern security works at most cloud companies. Even if you have root class credentials or the ability to escalate to them in some way (and that's a big if by itself), its a LOT of steps to get access to customer data, almost always involving broken glass, many protection layers, and often requires cooperation of multiple other root level people/credentials from completely different teams.

Depending on how the infrastructure is built, or what the particular service set up, it may not even be possible to gain access to specific data without extraordinary means, possibly involving replacing physical hardware.