UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'D1litUTx1p7P7LLqLL8hTIP1xCVRVSTLiBLFX1EgXDA=' 
WHERE 
  key_id = '4e6dfd7bbdf843556a5975e514aa2052f6f783c8f847cab7121019d20066054e' 
  AND (
    token = 'D1litUTx1p7P7LLqLL8hTIP1xCVRVSTLiBLFX1EgXDA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )