curl --request POST \
  --url https://api.kinqsta.com/v2/sites/environments/{env_id}/wpa-login-url \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "[email protected]"
}
'

{
  "login_link": "https://mysite.kinsta.cloud?wp-login.php?kinsta-sso=<token>"
}