matrix-spec/data/event-schemas/examples/m.room.server_acl.yaml

{
  "$ref": "core/state_event.json",
  "type": "m.room.server_acl",
  "state_key": "",
  "content": {
    "allow_ip_literals": false,
    "allow": ["*"],
    "deny": ["*.evil.com", "evil.com"]
  }
}