Get "success" response but my Devices are not doing anything

Hello Everybody,

im quite new to this and thought I try to implement my own control with the help of this API.

I am using the requests and json Module in Python and try to control my H61A0 with it (turning it OFF/ON, change brightness, ...). But even though the repsonse is positive my devices dont do anything, actually I get the same responses if I turn the devices off manually and remove their power plug. Any suggestions? I would be pleased if someone can help me - im sure I made a stupid mistake.

Kind Regards and wishing you a nice afternoon,

Sebastian