curl --request POST \
  --url https://app.nex.ai/api/developers/v1/notifications/custom \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "description": "<string>"
}
'

{
  "id": "<string>",
  "name": "<string>",
  "prompt": "<string>",
  "is_enabled": true,
  "schedule": "<string>",
  "created_at": "2023-11-07T05:31:56Z"
}