Hi keithkelly, you should be able to gather a user's subscriptions using API v2.0 https://developer.khoros.com/khoroscommunitydevdocs/docs/subscriptions
Examples:
SELECT * FROM subscriptions
will return the current user's subscriptions, or you can also search for a specific user's subscriptions by using:
SELECT * FROM subscriptions WHERE subscriber.id = '<user.id>'
(replace '*' with the specific fields you want)
Or if you prefer using API v1 there's this call https://devdocportal.khoros.com/t5/Community-API-v1-Reference/bd-p/restv1docs?section=commv1&leaf-id=User.subscriptions#User.subscriptions
