htaccess files rules

Where do i put your rules?

Current rules on server

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

need to add but not sure where to put them.

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule ^(.*) - [E=HTTP_AUTHORIZATION:%1]
</IfModule>

# END WordPress

If i just replace them with your suggested rules the site breaks.
I also tried just adding them to the end but that didnt seem to work at all.

# BEGIN WordPress
<IfModule mod_rewrite.c>

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]

RewriteCond %{HTTP:Authorization} ^(.*)
RewriteRule ^(.*) - [E=HTTP_AUTHORIZATION:%1]

</IfModule>
# END WordPress

any ideas

https://ww.wp.xz.cn/plugins/jwt-authentication-for-wp-rest-api/