UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K4rxCjWxPLTIyt2oV0oAn9fdPuHY35icMsR1SbRE3ZY=' 
WHERE 
  key_id = '6512406e27ea82ede14190d9afacabf2981738e65d82da219a152c52a1f40545' 
  AND (
    token = 'K4rxCjWxPLTIyt2oV0oAn9fdPuHY35icMsR1SbRE3ZY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )