{
  "Changes": [
    {
      "Action": "CREATE",
      "ResourceRecordSet": {
        "Name": "CUSTOM_DOMAIN_NAME",
        "Type": "A",
        "AliasTarget": {
          "DNSName": "REGIONAL_DOMAIN_NAME",
          "HostedZoneId": "REGIONAL_HOSTED_ZONE_ID",
          "EvaluateTargetHealth": false
        }
      }
    }
  ]
}