Filter by property

Hello, I need help with filtering my users collection by property.

I have a collection - users.
There are several properties.
one of them is “has active subscription”
which is users that have purchased my subscription (i have iaphub connected to apple/android)
people subscribe and get access to a library.
i dont know how to filter out the users that actually subscribed.

is there a way to filter the collection by property? to see those users who are related to this property.
thanks