{
  "manageEntity": {
    "action": "Create",
    "entityId": "549475670",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":549475670,\"description\":\"\",\"playlist_name\":\"New playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x9460dacf091e8e41f26162d3da600757f6efd6f75fd695abb14ed5a8f76c557c",
    "signature": "0xf17bf249f5f050bdb3390455342931701d9c604288575d3ccd5731df3be7c57a1380b4c36095f3c5b1944b6ddcf0004678cd8fa4d6b654d577d7e1e8ebf13e401c",
    "signer": "0x5c55C74ED4A55E52246499F5aFB44Db2721845f4",
    "userId": "79012833"
  }
}