Allows you to create a subscription assignment.
The exernal ID of the subscription, usually a unique identifier from the calling system
The Id of the related subscription profile
The Id of the related user
When the subscription starts (in Unix epoch time)
When the subscription expires (in Unix epoch time)
When the subscription is expected to be completed by the student (in Unix epoch time)
OK Response
{"Status": 10,"Error": "string","ClubMembershipId": 45632}