curl --request POST \
  --url 'https://api.flashcat.cloud/channel/update?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channel_id": 1001,
  "channel_name": "生产告警（v2）",
  "description": "更新后的描述"
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "external_report_token": ""
  }
}