UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kXj93R5LDkTfTVq4oo0LrluiLGYZTlswzsdfwGfwa4o=' 
WHERE 
  key_id = '52af399a75d725560ed00dc467de77bb63efd3e713717b85ee888a871b04be64' 
  AND (
    token = 'kXj93R5LDkTfTVq4oo0LrluiLGYZTlswzsdfwGfwa4o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00028