UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c4Lux1njtyHEwImc84gbblfPJBxw6NSFU55SDmDur64=' 
WHERE 
  key_id = '6391b08b1275f98d35452b7a730b9e05370a52f6c859b125b6b1272b7bbf5b15' 
  AND (
    token = 'c4Lux1njtyHEwImc84gbblfPJBxw6NSFU55SDmDur64=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )