UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zf40fXw7VE3wm5YJ3Y+6yU9TL1+79F+51JPPnY+NXTE=' 
WHERE 
  key_id = '491bee4a61667e0e62216a0f495f3e477ea3b792c1bd7d266690ceef397fd68d' 
  AND (
    token = 'Zf40fXw7VE3wm5YJ3Y+6yU9TL1+79F+51JPPnY+NXTE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )