UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uR0TlGK9zb3GNx6/cw3mOYUGsrrTb5HLEPUFJspdClo=' 
WHERE 
  key_id = '6ce34be313f17a0eb265d4f80a4547d597664fd3147a5d6411d2f7e893278654' 
  AND (
    token = 'uR0TlGK9zb3GNx6/cw3mOYUGsrrTb5HLEPUFJspdClo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )