UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UKYVnCX5rthvOZf7UL/6RGZWNKzmkLdZUdGJFmChNlg=' 
WHERE 
  key_id = '21e93b09501dffc405b4235765777e596cf59e171310bcdcf357ee6800abab33' 
  AND (
    token = 'UKYVnCX5rthvOZf7UL/6RGZWNKzmkLdZUdGJFmChNlg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )