Enroll a customer card in Visa Click to Pay.

This endpoint generates a Click to Pay event generated event.

Notes:

• If billing_address is not passed, it is looked for internally. If not found, an error is returned.

• This endpoint takes an account token - an access token encoded with a Pismo account ID.

• The process is asynchronous, success or failure is indicated in the generated event.

• This is a PCI endpoint, use the https://gw-pci.pismolabs.io environment.