UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WgXMs3AITzB08abhiabSshDeMce8sMAThU7yIYVfi30=' 
WHERE 
  key_id = '273c9122edd47ed5122c45ec5756476185e9b2f1e225509e79baef57c7208b5b' 
  AND (
    token = 'WgXMs3AITzB08abhiabSshDeMce8sMAThU7yIYVfi30=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )