curl --request PATCH \
  --url https://{operatorDomain}/v1/admin/settings/operator-payment-defaults \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "currency": "EUR",
  "depositPercent": 123,
  "balanceDueDays": 123
}
'

{
  "currency": "EUR",
  "depositPercent": 123,
  "balanceDueDays": 123
}