curl --request POST \
  --url https://api.example.com/ism \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "ismCode": "3AA3E630-1227-400D-BC64-D039639D00BA",
  "languageId": null
}
'

{
  "success": true,
  "data": "<unknown>"
}