UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x6qwH+Xa83hQC5OzTWBi+CIUanxzPtyAA8MmkApzr8E=' 
WHERE 
  key_id = 'c404cfb88582e281ff0f0d0fa5d6f61c24d5f117fe0e008b95077f4641b8756a' 
  AND (
    token = 'x6qwH+Xa83hQC5OzTWBi+CIUanxzPtyAA8MmkApzr8E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00027