UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QpEDYK3SK1xLvFWRqREUg+GfylHG2bje/b2JX/VeOYw=' 
WHERE 
  key_id = '51b250b374b57d7446e49d4d9478cb1ca2886e2db9057203b118fc0d952febd7' 
  AND (
    token = 'QpEDYK3SK1xLvFWRqREUg+GfylHG2bje/b2JX/VeOYw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )