{
  "manageEntity": {
    "action": "Create",
    "entityId": "358888892",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":358888892,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Fiery\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"pop,new,hiphop\",\"title\":\"scared\",\"duration\":155,\"audio_upload_id\":\"b9198e6439515ac73a31c7c401c4e7a6\",\"track_cid\":\"baeaaaiqsedhhjqqrsgcetdc3mep5adgtqitybnevnmjtbjvr442p6os5f5aci\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecpq3ctbolm3ddcy32brgk2anhglaebmojpeqj2etxtugrohi5lek\",\"orig_filename\":\"scared.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":133,\"is_custom_bpm\":false,\"musical_key\":\"B flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":112438,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebqv43jvadsvkashbz2jfd3kouslkrxmaf74wvil73ekbffch3gmi\"}}",
    "nonce": "0xe7b1267a8dc77b680d20efd8fe4f1e771d09ec0ecfdc52f7dca0b82661198049",
    "signature": "0x9c4042e92feec54365855bfe0a136cc3ffd51339164a33ed67577f1a7ed8765b544f5fad57a71a5b994c6b07ead4aee9ae393d5232e151a70a9f06df0849bf061b",
    "signer": "0x8FD5Dcb6416C98e759E8bE7E6302a440b096e5B1",
    "userId": "112438"
  }
}