curl --request POST \
  --url 'https://api.adside.ai/meta/mcp#get_video_preferred_thumbnail' \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "jsonrpc": "<string>",
  "method": "<string>",
  "params": {
    "name": "<string>",
    "arguments": {
      "video_id": "<string>",
      "timeout_ms": 123,
      "poll_ms": 123
    }
  },
  "id": "1"
}
'

{
  "jsonrpc": "<string>",
  "id": "<string>",
  "result": {
    "content": [
      {
        "type": "<string>",
        "text": "<string>"
      }
    ]
  }
}