UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PMkbdOaG0eUr4IrWJ5qz+mkoNmlmuYp4tAzESY7vYN0=' 
WHERE 
  key_id = '249b7b045bee69c5544111e2318d22c97f7de422f24bd2a89c84c00ac52a6f82' 
  AND (
    token = 'PMkbdOaG0eUr4IrWJ5qz+mkoNmlmuYp4tAzESY7vYN0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )