{
  "manageEntity": {
    "action": "Create",
    "entityId": "1845768138",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1845768138,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Cool\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2017-08-18T05:00:00.000Z\",\"title\":\"Gray Clouds\",\"duration\":253,\"audio_upload_id\":\"ea164c020ba9f74b10d0cc85b5d48dbc\",\"track_cid\":\"baeaaaiqsedxwkmswdqyqp74624q3xcy4rmku5c4fenrncfgr264xttulxfkbm\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecsj3r3xx4qs4li23pnlk2br47u6jgz6hj6t7hmgimvjv32wfpv4c\",\"orig_filename\":\"[RoL-E02] Zirex - Gray Clouds.wav\",\"is_downloadable\":true,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":140,\"is_custom_bpm\":false,\"musical_key\":\"G flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":753406205,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebjz3jxkuvlke4dcregnbiljk5cbrtztxpcrrej6l4ui4iy2eu53y\"}}",
    "nonce": "0xfbfe5322b11d7ba2de61837ef9a129f27f8e1d1a3fe6c38c446928b3c1fd4370",
    "signature": "0x600093e30deecb15c94b02f7c99d7e69a4431786f7e3c5696adcb63b3ff20b9a3448768acafb41a5ad26823261f3e8f35648b0cd71181d2ea103c18d30b2e0011b",
    "signer": "0xA78Fd746fAA824dCb68b68CC13fA9812a1ff2069",
    "userId": "753406205"
  }
}