curl --request POST \
  --url http://localhost:3000/v1/admin/notifications/order-confirmed \
  --header 'Content-Type: application/json' \
  --data '
{
  "userId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "orderNumber": "<string>",
  "totalAmount": 123,
  "email": "jsmith@example.com"
}
'

{
  "success": true,
  "notificationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "error": "<string>"
}