{
  "manageEntity": {
    "action": "Create",
    "entityId": "515826985",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":515826985,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"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\":\"NATURE MORTE (REMIX)\",\"duration\":283,\"audio_upload_id\":\"b256e421cd99df9b946189f7271dfee4\",\"track_cid\":\"baeaaaiqsebtnafj3awge7z2o3alsiineoest7fim2zn7s34aykkfeq73uolvq\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseaww3fvdjbukgs7hx7tgoklxdrbfrnndtzvlysfdkg6xxnspdwk22\",\"orig_filename\":\"NATURE MORTE (Remix).mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":131,\"is_custom_bpm\":false,\"musical_key\":\"C minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":598594668,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsec5wxpfuq6refjutfwkcbfyjlr22osauoe6xjq5dteanjc3bz62wg\"}}",
    "nonce": "0x5578bb3bae059f293d4b6c80628f191eab5ece80d8958f652c7abb516122eee2",
    "signature": "0xaf87e53a46b9df71ebb95f953a063284635b0db7b8c8cbd315b2e01079626f8534b0fea6bad2130bb6983a98cc7d647f3690db110975f2457a7d30f3f93b89871c",
    "signer": "0x3fAF2E9f86DC0Eb3813AB45CaEb1f364764c51e8",
    "userId": "598594668"
  }
}