UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uOVgHa24RbEe4VIwMwLbVpphohPbiIHPg7QUlFFxdOY=' 
WHERE 
  key_id = '251b8d15f919a29fbebe209cbfa32f61c84b312bebb7b3a5cc9b697455135701' 
  AND (
    token = 'uOVgHa24RbEe4VIwMwLbVpphohPbiIHPg7QUlFFxdOY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )