{
  "manageEntity": {
    "action": "Create",
    "entityId": "375687588",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":375687588,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Alternative\",\"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\":\"sample-3s\",\"duration\":3,\"audio_upload_id\":\"7e2e904eb4967a053916b76dc64789a5\",\"track_cid\":\"baeaaaiqseamwdfbm6asu63obsrtkqqgk2wd6n5kqwljanqzl232vnraeqdmge\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebrh45ene644tfyqbimaw4xmr6kbfi2kuk3zn3unjtzuwgdjz7nie\",\"orig_filename\":\"sample-3s.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":null,\"is_custom_bpm\":false,\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":281682,\"audio_analysis_error_count\":1,\"cover_art_sizes\":\"baeaaaiqsebge7tfp3w3qz6iqo6lfdvcge7prnfte2nsr5udn2m4rw77zp7b46\"}}",
    "nonce": "0xd721f84685358d2ab47276518b2ff3f8a8730385327e007f2e60e8bcf4aa3fde",
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    "signer": "0x229a981Eae98657c17Cc2a4827328E1877eA40C0",
    "userId": "281682"
  }
}