UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RdpY6k0YVO3JnbXA+W1e/ncWZEVApXo+PxpPLfBazoQ=' 
WHERE 
  key_id = '6b4ab42ebb5dff7ed6a996929922ce132892706a14cf606ff566cdb03c90cdc2' 
  AND (
    token = 'RdpY6k0YVO3JnbXA+W1e/ncWZEVApXo+PxpPLfBazoQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )