{"type":"gantt_collab_mailbox_ready","title":"1234","fid":"14DIqn8TqQMCgRlDhrxn2d8RKpuDv6D1p","file":"1234_7k2gzg@gmail.com \u2014 \uC6B0\uCCB4\uD1B5.json","participant":"7k2gzg@gmail.com","ts":1783840888}

{"type":"gantt_collab_mailbox_ready","title":"1234","fid":"14DIqn8TqQMCgRlDhrxn2d8RKpuDv6D1p","file":"","participant":"7k2gzg@gmail.com","ts":1783840888}

테스트

{"type":"friend_handshake","email":"7k2gzg@gmail.com","name":"\uC774\uCC3D\uC11D","ts":1783800759}