UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PbilJbHdLzaNOzPgog2yhM+FK7/qM56KTDpy/eBox00=' 
WHERE 
  key_id = 'd29cb35165e5af936bab4da393a702291beced01679441699a50873d671ef0d3' 
  AND (
    token = 'PbilJbHdLzaNOzPgog2yhM+FK7/qM56KTDpy/eBox00=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )