UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x2Mg0z2Kp91aYPiIAGu3oFPm+kgaLrnDcFrCoXEwUec=' 
WHERE 
  key_id = '81a67d320971d414b76df02371ebd43ac92a8cdd218826b892c1f09c9af1ebbe' 
  AND (
    token = 'x2Mg0z2Kp91aYPiIAGu3oFPm+kgaLrnDcFrCoXEwUec=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )