UNSOLVED MMM-iFrame Send command

[Phil5841]

Hello,
I use squeezelite into iFrame.
I want to send command (next track, previous track, play, pause, …)

The command I have to send

b8:27:eb:72:c3:f1 button stop
b8:27:eb:72:c3:f1 button play
b8:27:eb:72:c3:f1 pause
b8:27:eb:72:c3:f1 stop
b8:27:eb:72:c3:f1 play
b8:27:eb:72:c3:f1 mixer volume +10

b8:27:eb:72:c3:f1 is the MAC Adress

Can you help me ?
Thanks