Nginx configuaration for wordpress under different path - php

Question

I have php website (symfony framework running in dev env) under example.com and wordpress blog under example.com/blog/ .
Now I'm trying make make wordpress working under this set up.
As of right now I have only static files served by nginx.
I can't make php files executed.
Symfony app root dir: /data/example.com
Wordpress root dir: /data/example.com-blog/web
My nginx config
server {
listen 80;
server_name example.com;
charset utf-8;
access_log /var/log/nginx/example.com_access.log main;
error_log /var/log/nginx/example.com_error.log;
root /data/example.com/web/;
index app_dev.php;
error_page 400 401 404 500 = /index.php;
location ~ /\. {
deny all;
}
location ^~ /blog {
log_not_found on;
access_log on;
root /data/example.com-blog/web;
rewrite ^/blog/([^.]+\.[^.]+)$ /$1 break;
try_files $uri $uri/ /blog/index.php$is_args$args;
location ~ \.php {
return 401; # for
}
}
location / {
try_files $uri /app_dev.php$is_args$args;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_intercept_errors off;
fastcgi_pass unix:/tmp/php-fpm.socket;
fastcgi_index index.php;
fastcgi_param HTTPS off;
include fastcgi_params;
}
location ~* \.(jpg|jpeg|gif|png|ico|js|css|htm|html|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|swf|flv|htc|xsl|eot|woff|ttf|svg)$ {
expires 1w;
tcp_nodelay off;
}
}
I tried to use RichardSmith's example and now I'm getting 403 error
location ^~ /blog {
alias /data/example.com-blog/web;
if (!-e $request_filename) { rewrite ^ /blog/index.php last; }
location ~ \.php$ {
if (!-f $request_filename) { return 404; }
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $request_filename;
fastcgi_pass unix:/tmp/php-fpm.socket;
}
}