UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'A6XTwgQCiOuVqfz7hfCk/Yat4sHG464S1jmTc0u2PlU=' 
WHERE 
  key_id = '50976ff8b0d4aed749f80930691d9111b6e2e4277997e157a1be98fd6e661ac8' 
  AND (
    token = 'A6XTwgQCiOuVqfz7hfCk/Yat4sHG464S1jmTc0u2PlU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )