Custom keybinds

Everytime I set my keybinds in a separate profile it says that from now on they are saved on blizzard services and that they are available from any device I log to.

Everytime I have to format my windows drive or change PC keybinds are not available, so it looks like they are stored locally after all…

Where are the keys stored locally so I can save them in the actual cloud and not have to set them up everytime?