UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mqk68qIJjtGv9SnQNlqop7btwOM7/BNosBKuBz/6LrI=' 
WHERE 
  key_id = 'eae66cbe04dde68f7542b90cf988c7c82762aaf0367571ccfc60ca17e7ee8a5f' 
  AND (
    token = 'Mqk68qIJjtGv9SnQNlqop7btwOM7/BNosBKuBz/6LrI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )