UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xvRbd3dRqb26rQDyz6iSb7p2mPMZXmOq9DUJTNSrLfI=' 
WHERE 
  key_id = '795f0a791aa670fb99e0a51271e5954da31b6287f2a8ed8160d892ba7231eee7' 
  AND (
    token = 'xvRbd3dRqb26rQDyz6iSb7p2mPMZXmOq9DUJTNSrLfI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )