curl --request POST \
  --url https://public-api.etoro.com/api/v1/reactions/{postId}/comment \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <x-api-key>' \
  --header 'x-request-id: <x-request-id>' \
  --header 'x-user-key: <x-user-key>' \
  --data '
{
  "owner": 12345,
  "message": "Great analysis! Thanks for sharing.",
  "tags": {
    "tags": [
      {
        "name": "string",
        "id": "string"
      }
    ]
  },
  "mentions": {
    "mentions": [
      {
        "userName": "string",
        "id": "string",
        "isDirect": true
      }
    ]
  },
  "attachments": [
    {
      "url": "string",
      "title": "string",
      "host": "string",
      "description": "string",
      "mediaType": "None",
      "media": {
        "image": {
          "width": 0,
          "height": 0,
          "url": "string"
        },
        "video": {
          "videoSourceId": "string",
          "videoSource": "None",
          "image": {
            "width": 0,
            "height": 0,
            "url": "string"
          }
        }
      }
    }
  ]
}
'

{
  "entity": {
    "message": {
      "text": "<string>",
      "languageCode": "<string>"
    },
    "id": "<string>",
    "owner": {
      "id": "<string>",
      "username": "<string>",
      "firstName": "<string>",
      "lastName": "<string>",
      "avatar": {
        "small": "<string>",
        "medium": "<string>",
        "large": "<string>"
      },
      "roles": [
        "<string>"
      ],
      "isBlocked": true,
      "isPrivate": true,
      "countryCode": 123,
      "piLevel": 123
    },
    "created": "2023-11-07T05:31:56Z"
  },
  "repliesCount": 123,
  "emotionsData": {},
  "requesterContext": {}
}