UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/vqaEAeDeFVeaWl6Nxh3Rs/FibvV7wxOpUyROCIEaMI=' 
WHERE 
  key_id = '6b2a9b04b52c082d745f04e3c17b853c24d81a390ead26d5482ecf07e636c94e' 
  AND (
    token = '/vqaEAeDeFVeaWl6Nxh3Rs/FibvV7wxOpUyROCIEaMI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )