{
  "manageEntity": {
    "action": "Create",
    "entityId": "481513581",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":481513581,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Synthpop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Voltage Dream - Static Velvet\",\"duration\":249,\"audio_upload_id\":\"5682d4e6933e6a1534718fe8ce32506c\",\"track_cid\":\"baeaaaiqsecfjkf3lsq3m4smhznmu7w4iqoq4fhd4zzpqeaqe2nf6jn5u4x4ya\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsect6ooyhqkjpwya6l3y5nrgcm5w5jztnulgscljjk6kbpafsmozha\",\"orig_filename\":\"22-Voltage Dream - Static Velvet=.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":128,\"is_custom_bpm\":false,\"musical_key\":\"E flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":129329734,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecksbzlulsbceredpus4crcfnql4d4invi7qwi4rkdgwn32vifyog\"}}",
    "nonce": "0xffceb9146d4cb75a7c99b20e82714661e4b67704ac2033d6d1545ce5da711aba",
    "signature": "0xb43353020fcce88506b1355c26dc45112fc75112820cf76b465546150936fbbc06d9828a8d15768706739b31f3334141042ef93624516987dd77af559cf602361b",
    "signer": "0x88602394b9baf0757a2CbE35FC3fBdb9E75b6DEb",
    "userId": "129329734"
  }
}