UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RS+8D4n8hEjiNqq7TrAebU+Ca7GoVoHxvrsv1DbZdCs=' 
WHERE 
  key_id = 'b6e6676d416076705be1921d93dd5c51436141506f44f5cba2c4a41d6339e995' 
  AND (
    token = 'RS+8D4n8hEjiNqq7TrAebU+Ca7GoVoHxvrsv1DbZdCs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )