UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'HKDafW3U+4PNleZ8uulRTtScl/OkzOsL3dW+7PDkCdg=' 
WHERE 
  key_id = 'c7d068690629d38e389070b874b749ee97c9618d54516fe38762333ce421b1f8' 
  AND (
    token = 'HKDafW3U+4PNleZ8uulRTtScl/OkzOsL3dW+7PDkCdg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )