curl --request POST \
  --url http://localhost:3000/api/attributes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "key": "<string>",
  "label": "<string>",
  "type": "string",
  "category": "user",
  "operators": [
    "<string>"
  ],
  "suggestions": [
    "<string>"
  ],
  "placeholder": "<string>",
  "description": "<string>"
}
'

{
  "statusCode": 123,
  "message": "OK",
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "key": "<string>",
    "label": "<string>",
    "type": "string",
    "category": "user",
    "operators": [
      "<string>"
    ],
    "is_custom": true,
    "is_active": true,
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "suggestions": [
      "<string>"
    ],
    "placeholder": "<string>",
    "description": "<string>",
    "created_by": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}