UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CSk67yfhF/e0npI5Yj8BBhLKEVZmgd7jfOKMvExT9eI=' 
WHERE 
  key_id = 'e991d1267841ebfa072124560e37c197d995d1f4b01c916fce1a968dc64b35e3' 
  AND (
    token = 'CSk67yfhF/e0npI5Yj8BBhLKEVZmgd7jfOKMvExT9eI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )