UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MjnZKYamZ6Qntl1r2awVLW1I0g0jeHJcL6Fx0GDW6tQ=' 
WHERE 
  key_id = '81ca83d0dba40aeb530b19dd290d6a1b7faf7137014f0d09a1f160615008ce16' 
  AND (
    token = 'MjnZKYamZ6Qntl1r2awVLW1I0g0jeHJcL6Fx0GDW6tQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )