{
  "manageEntity": {
    "action": "Create",
    "entityId": "1071221310",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1071221310,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Ambient\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"MI MADRE ME PEINABA by Prof. Manuel GAGO FERNÁNDEZ\",\"duration\":294,\"audio_upload_id\":\"30360cbc34ec8f92f56db9c3d387e99d\",\"track_cid\":\"baeaaaiqsedtvbu5gcqeiiykjxaqklz3fvesadiwg2lhgaj5ahxrusw7bnvvto\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseacdyaibluh6oaoo5qv6ilswmeuuq5mdjv5rc7556kqvgdyvzenw6\",\"orig_filename\":\"MI MADRE ME PEINABA by Prof. Manuel GAGO FERNÁNDEZ.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":137,\"is_custom_bpm\":false,\"musical_key\":\"B flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":42634173,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecwvcsw64giokikianofhtgyftnssuv3imglbjr5owkbqut7dmffa\"}}",
    "nonce": "0x2719d69fda987644541af6d52c6e3930dda80cb060bbcb869bf8db940276ac0c",
    "signature": "0xe194489ccd0385cd1040535e95f0dd4a23588dfab8482affd93feb6253b823c77ad432f4c808949c12f9ff6b55a85782b0d6bf6a3dab89a98e680cff214262f61b",
    "signer": "0x18a7B3405E81900d8aF72d98D5f2C54e2C988f9b",
    "userId": "42634173"
  }
}