{
  "manageEntity": {
    "action": "Create",
    "entityId": "85909090",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":85909090,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Alternative\",\"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\":\"2026-04-18T15:31:56.000Z\",\"tags\":\"ai,grunge\",\"title\":\"Palindrome (Grunge Version)\",\"duration\":207,\"audio_upload_id\":\"03ddd452d6ef8846c6193e79eae9f37d\",\"track_cid\":\"baeaaaiqsedef4tchaistk5asaicc4ott62guaqnuv47535xvsczrxjisnhss4\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedswkqje3eovopyy7h7y6mb6sjxemjdpdncfjqs7quuq4jtcv3wio\",\"orig_filename\":\"03 - Palindrome (Grunge Version).mp3\",\"is_downloadable\":true,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":127,\"is_custom_bpm\":false,\"musical_key\":\"E flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":571769298,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseamybo2cp6k4idp3hypx2bmk6vqjjgqiwcryzhwytacmala42vt6g\"}}",
    "nonce": "0xf1d8e688f1454256e26b88cb7bdb61d0469013317e64d7970de465e710c0dd43",
    "signature": "0x8fad93c599f851d2f6e20cb96cb6664334f396261f65071bbcab6e8d62d0d04d508314fdb6ab057dbb89b6e1ad2f5aed51a5e30ec741bc3820d2f4c46bf2ce751b",
    "signer": "0xF7Ff21A93e2fD804bf23303760999b125e251EbC",
    "userId": "571769298"
  }
}