UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DB0yx3j0EuY58cjm3YmWzk2LicyI23WPariTSx1a9F0=' 
WHERE 
  key_id = '338a6bdda5618321c64ae61319cc3961602988bf0b0ad3390bf01fc2b2705383' 
  AND (
    token = 'DB0yx3j0EuY58cjm3YmWzk2LicyI23WPariTSx1a9F0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )