UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8pGnSTDLSV58zlR1eAqH4uyAUW0dFoVLvcBy+RGCuSs=' 
WHERE 
  key_id = '6433e18f67c82cac7519cf0799a87aab2099694de51666e40a8830251a3bffd3' 
  AND (
    token = '8pGnSTDLSV58zlR1eAqH4uyAUW0dFoVLvcBy+RGCuSs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )