/usr/local/etc/nginx/nginx.conf client_max_body_size 64;
client_max_body_size 64;
/usr/local/etc/php.ini upload_max_filesize = 10M post_max_size = 10M
upload_max_filesize = 10M
post_max_size = 10M
https://www.drupal.org/docs/7/managing-site-performance-and-scalability/increase-upload-size-in-your-phpini