{
  "manageEntity": {
    "action": "Create",
    "entityId": "507306374",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":507306374,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Gritty\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"ozzy,osbourne,crazy,train,florals,remix,bass,house\",\"title\":\"Ozzy Osbourne - Crazy Train (FLØRALS TRIBUTE) radio\",\"duration\":154,\"audio_upload_id\":\"97f8deb204d415ae42f0d172cef5353d\",\"track_cid\":\"baeaaaiqseac66w4bxy34apwbrdd37evzfj5bvjxz6mgsp2swtpsmea5lghenu\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedjursz2ncaavsbknss57vh3fleqi4slrkwk3vzu4s5esiw6y573k\",\"orig_filename\":\"Ozzy Osbourne - Crazy Train (FLØRALS TRIBUTE) radio.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":130,\"is_custom_bpm\":false,\"musical_key\":\"G flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":711732188,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecsigl3eeaow4rjuugn5cesa7lcf5fwdzhzj2nslmm6v3f6suzteu\"}}",
    "nonce": "0xb69f4bbbf3626b9a533fb49d31ae4f0cb0e03b899a71b7eea1536f49d39dd3e4",
    "signature": "0xa5ce069f85f9327c1c51f6d3414715b8d20ff4f7f247906ce2a8385c6234041363fc5e9a2bb79245f30b3b994f3d35f2c1a6c01e9b0ce11c1318249111e5a3f61b",
    "signer": "0x209EdDD1aE9eCa90e41FA4e28F3cFd8BCAb24Dd9",
    "userId": "711732188"
  }
}