rewrite - How can nginx rewrite certain routes?

Question

For example, if I want to rewrite the following route:
/user?id=55
/question
to /dispatch, how should I write it?

Answer 1

location /question/ {
    rewrite ^/question(.*) /dispatch$1 last;
}

location /user/ {
    if ($query_string = "id=55") {
        rewrite ^/user(.*) /dispatch$1 last;
    }
    
}

Answer 2

location /question/ {

rewrite ^/question(.*) /dispatch$1 last;

}

location /user/ {

if ($query_string = "id=55") {
    rewrite ^/user(.*) /dispatch$1 last;
}

}