AES-128 encrypted streams, how to view?

[kalehrl]

Hi.
I have a subscription to a streaming service and the channels work fine in their Android/AndroidTV apps, browsers etc. but I would like to use my paid TiviMate app and m3u8 list. I did some analysis and the streams seem to be encrypted with AES-128:

\"encryption\":{\"enabled\":true,\"type\":\"AES-128\"},\"protection\":{\"protected\":true,\"mode\":\"token\",\"value\":\"hash-xxx\",\"headerName\":\"X-Play-Auth\",\"headerValue\":\"hash-xxx

I've tried WidevineProxy2 which works fine on other widevine streams but not on this one.
They are using index.mpd for their streams.
Does anyone have any experience with such streams?
If someone knowledgeable wants to have a look, I can provide access to the service.