{
  "manageEntity": {
    "action": "Create",
    "entityId": "575848234",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":575848234,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Classical\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Excited\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"yesterday becomes today.lola/tuggie.\",\"duration\":151,\"audio_upload_id\":\"d393120c8b237ce29e804d87a289c207\",\"track_cid\":\"baeaaaiqsec3xbzrkvzhseyl6qus22l7wsgxu5scgou4enaqmlgpdxiv32mbyg\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebwdzwdbp5rflciielli6apqwbtxqcrkbvocwaty3twnxsfadwvdq\",\"orig_filename\":\"yesterday becomes today.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":146,\"is_custom_bpm\":false,\"musical_key\":\"D major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":695524756,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsed46zgvspasuf3lgvvspibztojrmh2cxs3l4wlz7sayafn3yz757m\"}}",
    "nonce": "0xb4a7f66287e464719452b6d0974e8dfd354c7583d2284beea88b9981f86f81d0",
    "signature": "0x6c3e3248b36670c1b0c65915ddb7fe49888f1478e7f93f608610288b9aa27dcd072ad5d1c85864400ca69c1ace94d4ba7d6af0fb144960356e7736fc7387e2281c",
    "signer": "0x8DA672e48dAa4945B6E0651EfdeFF5ee96C6a6C6",
    "userId": "695524756"
  }
}