Update the subscription.
If you update the frequency or count for a donation, the nextPayment will be recalculated
(unless you also update the nextPayment) based on the last donation or the date the
subscription was created.
If nextPayment is set to a time in the past, it will be set to the current time.
You may also set preferredDay to change the anchor day the donor is charged on. The
endpoint will recalculate nextPayment using the schedule engine and return
skippedForSafety as true in the response body when the safety gap advanced the charge
date by one full period. PayPal-backed subscriptions return HTTP 422 when preferredDay
is supplied.

For custom components:

RaiselyComponents.api.one('subscriptions', '{uuid}').patch(data = {}, params = {}, headers = {}) => Promise<{result}>

See Restie Response Data for a more detailed overview of responses through the client wrapper