UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Wc2trum6jmUEnsGJonbqiFmYvNDzw61NA32SkWiyO5I=' 
WHERE 
  key_id = '81cdf5b9ca098c8b534d594055868acb1bdb61ebcc27e60b41de521cfe00f478' 
  AND (
    token = 'Wc2trum6jmUEnsGJonbqiFmYvNDzw61NA32SkWiyO5I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )