UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'm2U4ig+gtyP1PmQsBJVI5ircCdVSTtlrWzt3X4XDCaU=' 
WHERE 
  key_id = '83854a43ca4732701ac97cf321a529cef62105c80e6b1613e4828c1c0dfce8e0' 
  AND (
    token = 'm2U4ig+gtyP1PmQsBJVI5ircCdVSTtlrWzt3X4XDCaU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )