{
  "manageEntity": {
    "action": "Create",
    "entityId": "543972270",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":543972270,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":\"AUQ9D2618289\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":\"All rights reserved\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Hush\",\"duration\":215,\"audio_upload_id\":\"ab98fd11e4da1ac77d8a9f2c462210b4\",\"track_cid\":\"baeaaaiqsed6sve5r2vsj2nut7wwvfqujflr2mvw3aetyah7ssrovdwvketvke\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedl364q67ewexscczzqqviwljxnoqixp7m3hmstzey2wg5cdffvqm\",\"orig_filename\":\"01_PINES_Hush_Main_SWv1_44k24b.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":100,\"is_custom_bpm\":false,\"musical_key\":\"A major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":298766,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsechfbzzlwbhoefb245eesq7g22yahngwtqwvh4a5ofcxceus3od2y\"}}",
    "nonce": "0xc551ae6f3989f790c611bed137b70e2add17b2d291c3ef6dca1b811548da1544",
    "signature": "0xd0aa8488005a7675d1c1d1e78bf803e6522660bfcb64008082f79220853d45d11bfec27bfdc207849c6ff5f0b29c36de4585469ca3ec8cf2dfe88299a12a3d641c",
    "signer": "0x4C104b229224d3926e6e03270a09E56713af7Efb",
    "userId": "298766"
  }
}