{
  "manageEntity": {
    "action": "Create",
    "entityId": "130564997",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":130564997,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Pop\",\"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\":\"Późne popołudnie\",\"duration\":242,\"audio_upload_id\":\"04db7e9d1c3f88a79dd162830d8e2e45\",\"track_cid\":\"baeaaaiqsebuueh2la7s5azrb6pmjadmdtsawaujgtfeq5a6ss6afebugnhzru\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecdeccz2vsnkcuvzg7zswb6q3vkyrtigqzd4g66mezqovzdjs3utc\",\"orig_filename\":\"audiomass-output (4).mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":121,\"is_custom_bpm\":false,\"musical_key\":\"F minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":85766903,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecsjncwtooaq45tpkdtizx7wqai3eqvpepq65kc2agoampvsvbduc\"}}",
    "nonce": "0x8d4c7bb6f6854e1b5fe96f820e50a467eefc38f8a203df07e9485eb6d505d064",
    "signature": "0x8d6efa916a50f6e6de48c6a6fad8ac5209ab52001152529d8d8a976b4227991050cf99dbb50ddb4f06b60d9e6fd7ed74711ff4e93b4a4ce9b657f63910c974561b",
    "signer": "0x7998d34D204eD1127E226AA1dcEddB8643ACd55A",
    "userId": "85766903"
  }
}