Returns the customers subscribed to a subscription, newest first, as an array. The list is not paginated.

Each subscriber has an id (MPB-SUBSCRIBER-...), a status (Active, Paused or Unsubscribed), the customer (id CUS-..., name and email), number_of_payments (every payment attempt on this subscription, including failed and refunded ones, not only successful charges), total_paid (the sum of captured payments, as a formatted string such as AED 11.00), and next_payment_date. next_payment_date is null unless the subscriber is active.

Use the subscriber id to unsubscribe one customer or to move them to another plan.

If the subscription doesn't exist or isn't attached to a payment link, the call returns 404.