Creates an entity client with the onboarding information. The onboarding information are submitted in the same request. Client is created with the status ONBOARDING_UNDER_REVIEW. The whole onboarding is a multiple step process:
{"name":"ABC","registrationNumber":"123456789","registeredAddress":"1, rue de la Paix","registeredAddressCity":"Paris","registeredAddressPostalCode":"75002","registeredAddressCountryCode":"FR","placeOfEffectiveBusiness":"1, rue de la Paix","businessSector":"agriculture","businessSectorDescription":null,"turnover":"140","turnoverDocuments":["file_10.pdf"],"lastTaxNoticeDocuments":["file_11.pdf"],"purposeOfOnboarding":"treasuryManagement"}
[{"firstName:":"John","lastName":"Doe","email":"john.doe@abc.com","phone":"+33 1 23 45 67 89","jobTitle":"CEO","supportingDocuments":["file23.pdf"],"role":"AUTHORIZED_SIGNATORY"}]