UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GuYyz2NSeaQksVTcjJtO0znsFFepwDyhVPXzgiqLrWc=' 
WHERE 
  key_id = '3640c5c3892590b947bba5226dd74ad11c8f508a0242948016f3ddceb8b15456' 
  AND (
    token = 'GuYyz2NSeaQksVTcjJtO0znsFFepwDyhVPXzgiqLrWc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )