The paymentRequest object allows to transmit the information related to the payment.
It has the following attributes:
Amount for which strong authentication is required (will be visible on the authentication page).
must be expressed in the smallest currency unit (cents for euro).
May be sent at “0”, namely when the method verifyThreeDSEnrollment is called before creating a token.
Currency code of the transaction (ISO 4217 standard).
E.g.: 978 for euro (EUR)