UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'm8lMDgBQzeC9uvMnGI4LcFTW+N50WAvKUYNopmGrviM=' 
WHERE 
  key_id = '451e2e6f9856df63c82b98eeaa5d09c27cdabdfb92ddf2dbe134430e9271e296' 
  AND (
    token = 'm8lMDgBQzeC9uvMnGI4LcFTW+N50WAvKUYNopmGrviM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )