{
  "manageEntity": {
    "action": "Create",
    "entityId": "256147484",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"cover_art_sizes\":\"baeaaaiqseburj46coe6gyzvneaoshxwsiohuardaindbhghbom5ykdhobugig\",\"description\":\"The Room\",\"duration\":317,\"genre\":\"Ambient\",\"mood\":\"Brooding\",\"orig_file_cid\":\"baeaaaiqseciqkkfuy67cfvfik32wpvrw6mkjeejxx2zur34mcjrecnf4y3rkm\",\"orig_filename\":\"04-the-room.mp3\",\"owner_id\":850116073,\"tags\":\"brevos,dragon-slayer,piano,post-rock,rock\",\"title\":\"The Room\",\"track_cid\":\"baeaaaiqseaucepotgkxsrsfze7v4slgmpepevjhpvuob2dqgazyrahuv74stw\"}}",
    "nonce": "1792422048120980911",
    "signature": "0x69aa90f03e774002d59e9759e6a3c42f21bf396d8c138db696ca9b9ab261faa940380abb10476b57b0325f03d9c214dbc5acb07690cfd38394fcd8af59c21c801b",
    "signer": "0x7d853670b15a2150BFfd80b516C26EEd400f695a",
    "userId": "850116073"
  }
}