I don't know why the recent video on U-NEXT can't get all 3 keys directly, only some of them, I can only find two, I hope I can be taught to find the third key.

URL:https://video.unext.jp/play/SID0089348/ED00476156
LICENSE:https://wvproxy.unext.jp/proxy?play_token=645372e9-97fd-4c71-bf67-0cfe253ca7a1
MPD:https://playlist.unext.jp/playlist/v00001/dash/get/MEZ0000823006.mpd/?file_code=MEZ000...7-0cfe253ca7a1

The two PSHH I could find：
AAAAXHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAADwIARIQqW nea0iYEe6O8Jha69SgfxIQqW01kUiYEe6Pg5ha69SgfxoFdW5l eHQiDU1FWjAwMDA4MjMwMDY=
AAAASnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAACoIARIQqW 03wEiYEe6RZpha69SgfxoFdW5leHQiDU1FWjAwMDA4MjMwMDY=

I was given two keys：
a969de6b489811ee8ef0985aebd4a07f:ecfbcec0160e447f8 2e5d432dc035842
a96d37c0489811ee9166985aebd4a07f:b361d7f6e1544942b a1bd6be9172bc52