UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uRFIo0oFvqnMnHFy96ys3Leokvn5DWcKZpriHUtgGaY=' 
WHERE 
  key_id = '28b7dccf9bbfaa8a88b41141ea0e774e185adb09983b44f9248881430e9042a4' 
  AND (
    token = 'uRFIo0oFvqnMnHFy96ys3Leokvn5DWcKZpriHUtgGaY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )