{
  "manageEntity": {
    "action": "Create",
    "entityId": "291057717",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":291057717,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-04-01T07:00:25.000Z\",\"title\":\"Gramatik - Bosphorus Flow\",\"duration\":283,\"audio_upload_id\":\"e5d48c9c3c0574544dbdd76dde8c72af\",\"track_cid\":\"baeaaaiqsedmzsjncm3dzha6p673xwbzch4y7b7f7rjmjivvgcse2z5wvvj52k\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseddc6qszvxmcdkdctcdqi52uvq2bru2xdby474jhi2gneeselwe3s\",\"orig_filename\":\"05 Gramatik - Bosphorus Flow.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":90,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":41804,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecjiewd5t7wodvsdewbo2c4khzjqk76vecifegj6lafew5uygq6uq\"}}",
    "nonce": "0xac2c896731fa7cdf9d73fd2eaa52b8e620d4029b61ec1e26fdf665968f546f81",
    "signature": "0x0d3a031e0f1a458f5fb28054903cb5085d268c708701dd4e94f1d864d99bf9a944c6f990e4af1933e0722266b47aa70aad4ba95407f429a334e2859bf4fe5c4e1b",
    "signer": "0x51C747e7437C025eb47a63843f019C0ff2253474",
    "userId": "41804"
  }
}