UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KYV66F7WhvYMo6sBCtjDNm+FaCT+AIRm/UM6HQyXvrw=' 
WHERE 
  key_id = '18f9799d3e2dae841e3678e0064cd4d74dfc53530c3025258b27d8bc15044854' 
  AND (
    token = 'KYV66F7WhvYMo6sBCtjDNm+FaCT+AIRm/UM6HQyXvrw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )