Does anyone know how to find the license and pssh on iq.com?

[artemisluck]

The 4k videos on iq.com are encrypted, and 4k version can only be played on phone, so I get the response and headers on phone and caught the m3u8. I saved it as json. But I need to find the key to decrypt it. Does anyone know how can I find the license and pssh? And I also wonder does the "ticket" mean pssh? Because they looks really similar. Thanks a lot!

This is the video:

https://www.iq.com/play/%E6%95%91%E4%BA%86%E4%B8%80%E4%B8%87%E6%AC%A1%E7%9A%84%E4%BD%A0-%E7%AC%AC24%E9%9B%86-rivz8uy5w4?lang=zh_cn

This is the response that contains 4k m3u8 I caught on phone:

http://cache-video.iq.com/dash?tvid=2703800261683000&uid=34001182707&ut=22&ps=0&d=1&pm=0&vid=b8b9f12a9c6e1c33c3de569dd1afebc6&src=02022001010012000000&k_tag=1&k_uid=cbc4e1566e22afc684c2e51331753f981101&tm=1653427898498&bid=800&fr=25&pt=0&s=0&rs=1&slid=0&sver=2&k_ver=4.3.0&messageId=pumaplayer_c935798d61db5af4b7155d56ccaa1535&k_ft1=598686012283820&k_err_retries=0&abid=800&lid=0&cf=1&ct=0&atype=0&k_ft2=1736442111&k_ft6=0&k_ft4=1732885675520004&dcv=6&k_ft7=20103&ori=puma&agent_type=366&su=2&applang=zh_cn&ds=0&from_type=1&from_sub_type=99999&dfp=14865a7d5eed4a5924a00c6b87c0b6a2bc05cbe42b448789669f1c28ab384f8749&hdcp=2.2&k_ft5=41&ve=5a378a79dc26fcec82d49a6303c9c318&pano264=500&pano265=500&pre=0&qd_v=1&fv=2&vf=459736fa47645c92637340b0c81bfde5

[artemisluck]

Could anyone offer some help~?