OptionaladdOptionalbillingExtra billing_data fields (street, city, country, …).
Optionalcapture"manual" authorizes the card only (needs integrationIds.card_auth); capture it later with
pay.payments.capture(...). Uncaptured authorizations are voided by Paymob after 14 days.
OptionalcardSaved card tokens (from card.saved events) offered on the checkout, max 3.
OptionalextrasMerged into the intention's extras.
OptionalpaymentRaw integration ids or method names, overriding methods.
OptionalsubscriptionStart a subscription on this plan with the first (3DS) payment.
Add the card used on this checkout to an existing subscription, as a secondary card.