STATUS: 400 HEADERS: {'Date': 'Fri, 05 Jun 2026 07:36:16 GMT', 'Content-Type': 'application/json', 'Content-Length': '140', 'Connection': 'keep-alive', 'validation-exception': 'true', 'x-request-id': '3d2bda4a-d6b5-47f7-a72b-9a80eb1b3a7c', 'x-tenant-id': 'finrelay-uat', 'x-tenant-resolved': 'true'} BODY: { "title": "Constraint Violation", "status": 400, "violations": [ { "field": "requestAuthentication.arg1.paymentData", "message": "must not be null" } ] }