UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ecx256M8ETe5uMkYD5v0FwW7fYfC5gBWS3hJGCDFDNM=' 
WHERE 
  key_id = '623e40c5019b244e5032a6702d991cedea321f47d6938214057c836576823cfd' 
  AND (
    token = 'Ecx256M8ETe5uMkYD5v0FwW7fYfC5gBWS3hJGCDFDNM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )