Can someone translate these rules into Nginx for me?

<ifModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^wp-content/uploads(/_mediavault/.*\.\w+)$ index.php?mgjp_mv_file=$1 [QSA,L]
RewriteCond %{QUERY_STRING} ^(?:.*&)?mgjp_mv_download=safeforce(?:&.*)?$
RewriteRule ^wp-content/uploads(/.*\.\w+)$ index.php?mgjp_mv_file=$1 [QSA,L]
</ifModule>