curl --request POST \
  --url https://api.managem.co.uk/conversations/{id}/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "body": "<string>"
}
'

{
  "id": "<string>",
  "conversationId": "<string>",
  "sender": {
    "id": "<string>",
    "username": "<string>",
    "reviews": 123,
    "rating": 123,
    "score": 123,
    "sales": 123,
    "purchases": 123,
    "joined": "2023-11-07T05:31:56Z",
    "avatar": "<string>",
    "cover": "<string>",
    "profile": "<string>"
  },
  "body": "<string>",
  "createdAt": "<string>",
  "viewedAt": "<string>",
  "attachments": [
    {
      "id": "<string>",
      "imageId": "<string>",
      "url": "<string>"
    }
  ]
}