Download site video using LMS

[kall]

I'm trying to download the videos of some courses I bought this site, but so far without success. How I can download?

Data:
Site: https://portal.code.education
This is the inspection data made on the site and took the name of the player.

<object tabindex="0" name="evplayer" id="evplayer" bgcolor="#000000" data="//portal.code.education/bundles/sonbase/ev-player/Player.swf" type="application/x-shockwave-flash" height="100%" width="100%"><param value="true" name="allowfullscreen"><param value="always" name="allowscriptaccess"><param value="true" name="seamlesstabbing"><param value="opaque" name="wmode"></object><div id="evplayer_aspect" style="display: none;"></div><div style="position: absolute; top: 0px; z-index: 10;" id="evplayer_jwpsrv"><div style="width: 1px; height: 1px; position: absolute; background: transparent none repeat scroll 0% 0%;" class="afs_ads">&nbsp;</div></div> 

https://portal.code.education/assistir/get-video?45411

Video location, but when I call this url in the browser returns me a key:
" aWR2aWRlbz0xODI5I2lkc2Vzc2FvPTNlc3B1OGwyOWNuMW40cz N2ZTR0ZWVucXM0I2lkdXN1YXJpbz0xMjUzMiNjcGY9OTg0LjUz Mi43MDItODcjdmlld3M9MSNtYXh2aWV3cz0yI3VybHZpZGVvPX J0bXA6Ly8xNzkuMTI3LjQuMTQ2L3NjaG9vbG9mbmV0ZGVza3Rv cC9tcDQ6L3B5dGhvbi8xLzEuMy1JbnN0YWxhbmRvLXB5dGhvbi 1tYWMtZWNsaXBzZS5tcDQjdXJsY291bnR2aWRlbz0vYXBpL2xv Z3MvMTgyOS9ldi5qc29uI3Bvcz0w "

these are the information I have wanted to download all site videos of my course only once, saw this reference here: https://forum.videohelp.com/threads/350604-RTE-RTMPE-Ripping-%28How-to-rip-of-RTE-player%29/page11
More I wanted to download example 10 videos at once, it would be possible?

Att.