curl --request POST \
  --url https://api.example.com/v1/attachments/comments/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "body": "<string>",
  "content_type": "<string>",
  "object_id": 4611686018427388000,
  "context": null
}
'

{
  "id": 123,
  "body": "<string>",
  "user": 123,
  "content_type": "<string>",
  "object_id": 4611686018427388000,
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "context": null
}