Operation 1: Create Payment Session
POST https://{{domain}}/api/rest/version/{{collectionVersion}}/merchant/{{merchantId}}/session
RESPONSES
status: Created
{"merchant":"merchantId","result":"SUCCESS","session":{"aes256Key":"F/PAh7yNSGUdBo9IrjoaKs1oDSI5atW74vMhSnxJ4U0=","authenticationLimit":5,"id":"SESSION0002957490260M5004134I33","updateStatus":"NO_UPDATE","version":"976c569a01"}}