UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'HkEMBT917CzZLFbvypOQIKqUYSNIqjN4wbULrU7uYc0=' 
WHERE 
  key_id = 'e4159361f96d8b45e5fb291c17e49a3fa7a7e41d0766b41eb66c47e842ec2a6b' 
  AND (
    token = 'HkEMBT917CzZLFbvypOQIKqUYSNIqjN4wbULrU7uYc0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )