UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'euAI9MnCm+Vv524WPnoN6RgF46Fn2L//ljicOMA5dF8=' 
WHERE 
  key_id = '4239b36becf3393fd5ec851420dd277de5a72f2101ac3cbeda53af600110c445' 
  AND (
    token = 'euAI9MnCm+Vv524WPnoN6RgF46Fn2L//ljicOMA5dF8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )