curl --request POST \
  --url https://api.example.com/admin/agreement/save \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "languageID": 1,
  "agreementTypeCode": null,
  "agreementText": null,
  "agreementTitle": null,
  "agreementNavTitleCondensed": null,
  "agreementSummary": null,
  "urlPath": null,
  "changeNotes": null
}
'

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