curl --request POST \
  --url https://api.anysite.io/api/linkedin/management/chat/messages \
  --header 'Content-Type: application/json' \
  --header 'access-token: <api-key>' \
  --data '
{
  "account_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "user": {
    "type": "<string>",
    "value": "<string>"
  },
  "timeout": 300,
  "company": {
    "type": "<string>",
    "value": "<string>"
  }
}
'

[
  {
    "urn": {
      "type": "<string>",
      "value": "<string>"
    },
    "author": {
      "internal_id": {
        "type": "<string>",
        "value": "<string>"
      },
      "urn": {
        "type": "<string>",
        "value": "<string>"
      },
      "name": "<string>",
      "url": "<string>",
      "@type": "LinkedinManagementChatUser",
      "image": "<string>",
      "headline": "<string>"
    },
    "text": "<string>",
    "sent_at": 123,
    "@type": "LinkedinManagementChatMessages",
    "attachments": [
      {
        "name": "<string>",
        "media_type": "<string>",
        "url": "<string>",
        "@type": "LinkedinManagementChatMessageAttachment"
      }
    ]
  }
]