Help with Axioma W1 Water Meter and Mini Hub TBMH100 gateway

Can you help with packet decoder?
I see packets but how to decode?

“frm_payload”: “3Kz4aBAZAAAAQKn4aBkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=”,“decoded_payload”: {“bytes”: [220,172,248,104,16,25,0,0,0,64,169,248,104,25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]},

There is at least one topic with a link to the documentation from the manufacturer that explains the format.

To be clear, the device is documented and the forum has a link to that.

Please use search!