{
  "manageEntity": {
    "action": "Create",
    "entityId": "260463744",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":260463744,\"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,\"title\":\"Textures and synths\",\"duration\":183,\"audio_upload_id\":\"7c31995a4db5dee33f70c39e69fbd274\",\"track_cid\":\"baeaaaiqsebccornj2vsonhmsx3yt3b6t7welc47yb7z36nq6mzmx5xnqiitoy\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsed2x3oha5hfanaymwkixb7hl5oxdkgx5b6pwa5qvg2ctj57zc53ec\",\"orig_filename\":\"playing with synths.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":140,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":1931557,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedhtewvto24bon4gnl3ajda3sb3k774b5ardfrueljp3odzmpffes\"}}",
    "nonce": "0xe24f099d890f0d30967c274297d3854f24492d19b7e80a8d2d97862f019bcf78",
    "signature": "0xfee6b61548073f518376ffbb1df061f2c051b142525dc4001c99da78efc6d067246cd24fcf2ce72940030a16a776961dae06a935ed4582ddfc5322dd0dcd57d71b",
    "signer": "0x66C0920dcA0b918ab7d0c1A5d2251fa05C75EBBC",
    "userId": "1931557"
  }
}