{
  "manageEntity": {
    "action": "Create",
    "entityId": "972589145",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":972589145,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Experimental\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Serious\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Lines Drawn in Fire _ Líneas en Fuego\",\"duration\":334,\"audio_upload_id\":\"01KMS38E92QC0Z1TA6J4899PBD\",\"track_cid\":\"baeaaaiqseabekhqjlbpw5o2ykvux5no2r3z5c5fv7fqzyjb4ys6ck4i4753xw\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecg2ezvd45gd2zz54hpayrwn527xoco23x657ykp26zj4b7j76uly\",\"orig_filename\":\"Lines Drawn in Fire _ Líneas en Fuego.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":105,\"is_custom_bpm\":false,\"musical_key\":\"F minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":831117417,\"track_segments\":[],\"cover_art_sizes\":\"01KMS3873FBHSBJB02BHKSP031\",\"audio_analysis_error_count\":0}}",
    "nonce": "0x3c928211dad53e0486725321acd0eadcced72b78d5af803c51e13d366147b65b",
    "signature": "0xbac71c0d53d30173618769b9a6807bb257a5f740d05e581cce27ea9d240e47f4462989651e72e8dc5dbe18614998a63193d294d6c1e642632990f8194fc96ece1b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}