UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eW1tDgmSmKY55AH8c0DpNJx00Kz5YqF0wwnAoJmxOew=' 
WHERE 
  key_id = '51c322b3875f7a7de0b9895d07ee69c5e388940769b281b5e4a18958600e10af' 
  AND (
    token = 'eW1tDgmSmKY55AH8c0DpNJx00Kz5YqF0wwnAoJmxOew=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )