{
  "manageEntity": {
    "action": "Create",
    "entityId": "863977003",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":863977003,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Classical\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Excited\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"save me[repost]opera of paris]\",\"duration\":363,\"audio_upload_id\":\"d285696f4cb3a9a4a285d20f651d2cd2\",\"track_cid\":\"baeaaaiqseddrmwpdc5y6lq5fupmpyyfwv3f2zwm7iov7esrbe2elysjcbctpe\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebu3idsbtxqmwo65vs77fkpyvescxal4zsbwumvohg62oguppnxoy\",\"orig_filename\":\"save me.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":123,\"is_custom_bpm\":false,\"musical_key\":\"B flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":695524756,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecsiosszykoo3mx75npjq6ozrbhssgrqbm4eerivdh4dlcsgmtfey\"}}",
    "nonce": "0x7880432f0a37d5aea9901b898948cb04b7e45fb2f24bb46b155a2d5126eca38a",
    "signature": "0x02e01d92f11dc6a3d2b64de7b7104f5719edfe1bda5eb97f39c93e02332e0ac71929153cda422c639ea2d4b42ad1285ac59aac2c6179b1b481fe98f73e7312021b",
    "signer": "0x8DA672e48dAa4945B6E0651EfdeFF5ee96C6a6C6",
    "userId": "695524756"
  }
}