Process payment for an order. This endpoint supports both crypto payments (by providing a transaction ID) and card payments (by providing a tokenized card ID).
Authentication: Use either a server-side API key with orders.update scope, the clientSecret from order creation as an authorization header, or a JWT token with orders.create scope.
This is the identifier for the order with UUID format.
Example: 9c82ef99-617f-497d-9abb-fd355291681b
Process payment using a crypto transaction ID. Use this when the user has already submitted a crypto transaction.