UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RZOY4XifWU/eUl2+hjSrCkgvBL3TBUTgPUQwove/+rk=' 
WHERE 
  key_id = '55b50dc584c11831dda587bf01b012cd68be0db8454829976ab22133005a5ea1' 
  AND (
    token = 'RZOY4XifWU/eUl2+hjSrCkgvBL3TBUTgPUQwove/+rk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )