UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8VFvaDdWykXe/M0xpX74L6PREh8JJ3CvvX2SW0c6px0=' 
WHERE 
  key_id = '831ac670877cd4d4f226c67574843ba36884cd14b8e7f9b0f28501eb9d1ab210' 
  AND (
    token = '8VFvaDdWykXe/M0xpX74L6PREh8JJ3CvvX2SW0c6px0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )