curl --request POST \
  --url 'https://api.flashcat.cloud/channel/silence/rule/list?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channel_id": 1001
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "items": [
      {
        "account_id": 2451002751131,
        "channel_id": 5967964835131,
        "priority": 0,
        "rule_name": "Silence Info alerts",
        "description": "",
        "from_incident_id": "000000000000000000000000",
        "time_filters": [],
        "time_filter": {
          "start_time": 1773388800,
          "end_time": 1773414000
        },
        "filters": [
          [
            {
              "key": "severity",
              "oper": "IN",
              "vals": [
                "Info"
              ]
            }
          ]
        ],
        "is_directly_discard": true,
        "status": "enabled",
        "rule_id": "69b3c426b4a6f5abf1f54873",
        "updated_by": 3790925372131,
        "created_at": 1773388838,
        "updated_at": 1773388838,
        "is_effective": false
      }
    ]
  }
}