curl --request PATCH \
  --url https://sandbox.intermezzo.ai/organizations/{organization_id}/sepa-mandates/{mandate_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "validFrom": "2023-12-25",
  "validTo": "2023-12-25",
  "mandateReference": "<string>",
  "creditorId": "<string>",
  "bankAccountId": "<string>",
  "isRecurring": true
}'

{
  "validFrom": "2023-12-25",
  "validTo": "2023-12-25",
  "mandateReference": "<string>",
  "creditorId": "<string>",
  "bankAccountId": "<string>",
  "isRecurring": true,
  "id": "<string>",
  "createdBy": "<string>"
}