{
  "manageEntity": {
    "action": "Create",
    "entityId": "800204324",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":800204324,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Spoken Word\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"53 - Celle qui sait - Chapitre 53\",\"duration\":350,\"audio_upload_id\":\"6f2a91a73ff88226f6f6ca88ca9d009e\",\"track_cid\":\"baeaaaiqsectygsbwtgfwlj7v3ahizfudnnsdv7le2bs53ht4bgtvhxjlfc5i2\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedy7qder2fyozkzglaqy3mppsb3dv2p2a4hbgigjko5qcjsmotswk\",\"orig_filename\":\"53 - Celle qui sait - Chapitre 53.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":142,\"is_custom_bpm\":false,\"musical_key\":\"B flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":426957304,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedpllciels4gn5wwxobluvyza7fjha2pwdh5egntnmgsncyuqa7gu\"}}",
    "nonce": "0xc089b64705ae813efa38cd0f124b009d72ccdf18a470717f7ea49183d0803475",
    "signature": "0xb5b4a181aa8b2e6a91be2ac15032c2bd3a287edc393f8c68e4cb5b226aa5ff88691667d182b5c8a5bbfd2e89a18a39018f8dd1286120f4b95c00aa5e93e72cc31c",
    "signer": "0xEE8e9f9CBB51aaaA47B347678D6344cfCFa29F00",
    "userId": "426957304"
  }
}