UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wwL6moAmAqicyzay//GPGX3knIGaqnFaBIG7of6sFxk=' 
WHERE 
  key_id = 'f456cb54b685f4f9503204c17ac695964d2fca368bdde489a8a057bbe0edfcfc' 
  AND (
    token = 'wwL6moAmAqicyzay//GPGX3knIGaqnFaBIG7of6sFxk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )