UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nbQEzh7K6t97epJrkLFVB9loetxP1Sy7Q+lj2XvTEX0=' 
WHERE 
  key_id = '51ad68b1258f0668da5295fcf92bef4d349527cb52a966fe6f44192c60047e5a' 
  AND (
    token = 'nbQEzh7K6t97epJrkLFVB9loetxP1Sy7Q+lj2XvTEX0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )