{
  "manageEntity": {
    "action": "Create",
    "entityId": "1283753336",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1283753336,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Sophisticated\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Something Nice\",\"duration\":348,\"audio_upload_id\":\"2a4a3d4261c3774fdfe6bde1e73ce42c\",\"track_cid\":\"baeaaaiqsebndtkghnp7en4veftlc3xlcjkl5yhyqt2zovvguiiaa33wkimlze\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedyrenvsecugzifimgeigbj3s3bazrtgytuqdvk5o7nrcubqxdmtq\",\"orig_filename\":\"Something Nice.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":139,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":831474008,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsec5smnu26shurklqcctrbe2mutsczaafiqmyjsaxylydwfegtqtye\"}}",
    "nonce": "0x9a21415931ff5993979c8b06c1bc93fc949d16e086101a1ef52ce6416eefa1ae",
    "signature": "0x406e6353fefa994bfb748453b356030d6b74b198c8e924c8502b8b966dd7f47830add86732d61415cd77895936aa324e8a8f73a02226d3ce113aeaa12ce1a3181b",
    "signer": "0x250BA5492e75e8e9a4D09C6cDE8D09f1B7dfA3d8",
    "userId": "831474008"
  }
}