UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'HAltIExfFYOApg/tpXYmfoQd4HKBBuFk62BvJCiToYg=' 
WHERE 
  key_id = 'df8fd678734b5289022d93153c6861f54acd241cd8767d77edb826ca1fb4a296' 
  AND (
    token = 'HAltIExfFYOApg/tpXYmfoQd4HKBBuFk62BvJCiToYg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )