UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '/6DXBukBHxrV3djgyhp0POEx0fgzC8DZIp+78RCFCWA=' 
WHERE 
  key_id = '3cb9ff1a54dd682379cf8893f3ab53105d4ec1336ef67cb3a34657b6f951bd77' 
  AND (
    token = '/6DXBukBHxrV3djgyhp0POEx0fgzC8DZIp+78RCFCWA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )