{
  "manageEntity": {
    "action": "Update",
    "entityId": "264482111",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"Ironfang Invasion\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"blob:https://audius.co/c7489d47-940c-4da2-ac3a-9065ca5ac7c0\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1777279473,\"track_id\":1224517594}]}}",
    "nonce": "0x670fa82c2a6a31c3725f24f8267022a05ffb6ac8d58f769175736a52bf68d043",
    "signature": "0x55fb96182832199159e08abfbce941548369b36885f11052ab92a595ed6e8aa70a3360d484666e8141c67dc312faa041e2c79f095b75652024d27a64d7c3b3691c",
    "signer": "0xe40c39BfF751e8FB62fdf2D5Daf335da9CE9bB7d",
    "userId": "223054868"
  }
}