{
  "manageEntity": {
    "action": "Create",
    "entityId": "1138174228",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1138174228,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Experimental\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":\"Attribution ShareAlike CC BY-SA\",\"mood\":\"Fiery\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"pentatonic cluster duck\",\"duration\":209,\"audio_upload_id\":\"49b7045895b6cd1a37b7237c1bb2f06b\",\"track_cid\":\"baeaaaiqsed3fiyspnhn4k25lrrwgktptvurhpwtl27yaogxqwz45uedrwhd72\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebmurvpvrvoqdbnasbgyrtjjrhntqxt5lbxkpf4cjlj3dknt3s2ls\",\"orig_filename\":\"pentatonic cluster duck.aif\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":102,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":53188210,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedv3c6odqymlhzwnv7nre6njhftgjdgup6dhyrtdmapf47hekhgpk\"}}",
    "nonce": "0x4f45248c8a54f9b3837fabc6117bc54dea9510fb44e433bb9d22ef53ec64fc7a",
    "signature": "0x0d6f0156c0d93a29fc52b2b7941664192a71f10bac71a628e50c37260694fef64803ae0afa7158847d3c41eee35df56d99137d3d22f362143c3af8572d58468b1b",
    "signer": "0x872D227194F326D87cAcdaF331c7317c99eB3a3C",
    "userId": "53188210"
  }
}