UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QNUPVBafmDN411nTvGrK+zxP3XYzNjLwiF6RMa5AOBk=' 
WHERE 
  key_id = '51dedc5982f79f0ac019ffd663c7397a88acde35cdb08e8fa871c8cd9e56921a' 
  AND (
    token = 'QNUPVBafmDN411nTvGrK+zxP3XYzNjLwiF6RMa5AOBk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )