curl --request PATCH \
  --url http://localhost/api/payments/v3/payments/{paymentID}/metadata \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "metadata": {}
}'

{
  "errorCode": "VALIDATION",
  "errorMessage": "[VALIDATION] missing required config field: pollingPeriod",
  "details": "<string>"
}