UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+qCuJc7VEcScme1SDnw1DvdEdCsCdcjcZrOxYZ35HNc=' 
WHERE 
  key_id = '649fe78513c9a7f374719703baa629cc152d183cd2bfef8fccc9afcd32418611' 
  AND (
    token = '+qCuJc7VEcScme1SDnw1DvdEdCsCdcjcZrOxYZ35HNc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )