UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3m35T+HDZ8EntnssjT6RCX23zsxJpMkgw6+bboRMrac=' 
WHERE 
  key_id = 'c8a90dc56beee654d31bb8b9476e762894295dd7f665940d1feb52fc4934f191' 
  AND (
    token = '3m35T+HDZ8EntnssjT6RCX23zsxJpMkgw6+bboRMrac=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )