UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DWmRHvDf2/8JlVwxHF2SS45doL5P0MWUKqokqloYNtw=' 
WHERE 
  key_id = '68fd9e6f5cea5678bb9a9c52da16690c40823dc37911257767a50a1785744884' 
  AND (
    token = 'DWmRHvDf2/8JlVwxHF2SS45doL5P0MWUKqokqloYNtw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )