UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '4a487VX/9sbu1t48dJCWwcKnL1uvazZ/ugKstI4y1dg=' 
WHERE 
  key_id = '6cd816ff925b69e391943497e4da80aadd2f34416851f43ed7991e49ddee62e0' 
  AND (
    token = '4a487VX/9sbu1t48dJCWwcKnL1uvazZ/ugKstI4y1dg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )