{
  "manageEntity": {
    "action": "Create",
    "entityId": "494102547",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":494102547,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Metal\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"the-jey-sophora_beautiful-death-in-lima-night\",\"duration\":183,\"audio_upload_id\":\"de8e9cf5f8f07517e3a1e55e568afc8e\",\"track_cid\":\"baeaaaiqseb5moe7fm4dnffgom7elk3ctt54brs5g4cykt6alpy4gbajoaz52m\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedogr5picyagdjboiuh76dpdm3z34dtffojt5lmygnoqrgdgzz6gs\",\"orig_filename\":\"the-jey-sophora_beautiful-death-in-lima-night.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":134,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":505756728,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsed6vz2mzc5hsmt6bqbsnb22qtbcep6jft5vujmcrd5lnmeye7xr7m\"}}",
    "nonce": "0x980a75529528f7f8e315cad07cc2f72b44e8bce5a5a7dd3cb2613cd45c37b56d",
    "signature": "0xc29cb7b007b159ed5c5cd842172dfa772d043c404f74905f8de936831ffd0f936159d4b834b8c397e519401cf03e7be3b5f6a5d35f435d37dd133b6bbfb7eea81c",
    "signer": "0x108FE3bfaBC9526C3e23fd32439A590956A5A501",
    "userId": "505756728"
  }
}