Consegui... 🙌
na vdd.. o nginx estava passando a url , mas sem os parâmetros.
Assim foi..
location /webhook/(.) {
if ($ssl_client_verify != SUCCESS) {
return 403;
}
# proxy_pass /webhook/index.php;
proxy_pass https://localhost:443/webhook/$1;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}