UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nvZnZLDtWob84LEL+51xwHTh2qgXvNQStx50o7vIryQ=' 
WHERE 
  key_id = '46c7ea8d27fb005ce469436011c77eeb9bf39630d05cf222ff0a64953628a733' 
  AND (
    token = 'nvZnZLDtWob84LEL+51xwHTh2qgXvNQStx50o7vIryQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )