UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GFUfX82ujaJIWwmhN3eI1fDj1sIl1bWJe3viBtPdJrY=' 
WHERE 
  key_id = '637fc9a90b64873d2dfb52675ebfc3e3be56cb3bdc248d356f04f592e55c1dd0' 
  AND (
    token = 'GFUfX82ujaJIWwmhN3eI1fDj1sIl1bWJe3viBtPdJrY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )