{
  "manageEntity": {
    "action": "Create",
    "entityId": "550703007",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":550703007,\"description\":\"Freestyle\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"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,\"tags\":\"Freestyle,Lit,Texas\",\"title\":\"So P Freestyle \",\"duration\":121,\"audio_upload_id\":\"6f4c813bc63add51bd0f4f17466f84c4\",\"track_cid\":\"baeaaaiqsedhaafho4aapmp526ba4gr47biv43nzkkggz5kk2c4hkxmyn5umzi\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebmi4jrg7qt7oaggwhfvw3krbki4oytvfrobzcno6kq5mdjddxydw\",\"orig_filename\":\"KeepItSoPRingtoneRingtone.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":160,\"is_custom_bpm\":false,\"musical_key\":\"B minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":964481967,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseariqy7ji2tgdja7ppswfy36cx6cfmx5aetkzh4w2zkogqe7ipv5y\"}}",
    "nonce": "0xc0ca4ec05e0c018d6620f95c34f936cb124d6637f66ff0b551c7b7c72714e3d0",
    "signature": "0x90a419e69d9ca976140470f6c50441a6647462d11dab8bb73e4721f1e004e4841f0af46c71c4205b67354d04d53b5aaaf890a4f0e1beefa12ea63c342884e9221c",
    "signer": "0x4d107B21CA1f31fee1183D5D3D2710DEE2da3685",
    "userId": "964481967"
  }
}