{
  "manageEntity": {
    "action": "Create",
    "entityId": "28414121",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":28414121,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":\"\",\"is_unlisted\":true,\"iswc\":\"\",\"license\":null,\"mood\":\"Melancholy\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"orphanage\",\"duration\":291,\"audio_upload_id\":\"089caedae55e26c83aa97ea404b0ae98\",\"track_cid\":\"baeaaaiqsedzohpdrns6jjrnjgbnpvjtrw7gridhzaafkcmeolhyihpj4ymr42\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecxovj356mffpysne65cfqjusk6yrliqfsbflizojzvi7rdv62zug\",\"orig_filename\":\"06_orphanage.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":128,\"is_custom_bpm\":false,\"musical_key\":\"A major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":703514944,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecdfr5uvhaivpbneoddski3wffbqn4hijorwlpuzch3mal3pc75zo\"}}",
    "nonce": "0xa77612ebd197bf4093910589e1e3e682c05bb30a3b87a21440758be6674fa256",
    "signature": "0x5ad86da276eef5ca851d901cc2e3cf2121bf4e936559268154454249ea93c7d715f5c4e7c7107404c4330e56ae9ecb733ceca8a8f807b251aa58f01344ca064f1c",
    "signer": "0xc30bAbF21Ad5EfdB081cA75Ed3e544c7C1102B52",
    "userId": "703514944"
  }
}