You can get all the collections you have created by making a GET request to https://api.opus.pro/api/collections.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Query type
q = mine means list collections of your account.
q = findByContentId means list collections contained the specific content(clip).
findByContentId, mine "mine"
If specified, will only return collections that contain the clip with this contentID.
"Q20107035eDq.CU0b92e6"