post https://core-h.mkbank.com.br/api/pix/perform_qrc_payment
The Perform QR Code Payment endpoint allows you to perform a payment transaction using a QR code. You need to provide the payment amount (if the QR code does not have a defined amount), additional notes, and the validation code obtained from the "Fetch QR Code data" endpoint. This method is useful when making payments using QR codes generated by the recipient.