curl --request POST \
  --url 'https://api.flashcat.cloud/channel/escalate/rule/create?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channel_id": 3521074710131,
  "rule_name": "On-call escalation",
  "template_id": "6321aad26c12104586a88916",
  "description": "Notify primary on-call, then escalate to secondary after 30 minutes",
  "layers": [
    {
      "target": {
        "person_ids": [
          3790925372131
        ],
        "by": {
          "follow_preference": true
        }
      },
      "max_times": 3,
      "notify_step": 10,
      "escalate_window": 30,
      "force_escalate": false
    }
  ]
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "rule_id": "69db2f72a0fe7db6448b1506",
    "rule_name": "Test escalation rule"
  }
}