UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BN48XSgVXkB9tkKC5mBWlZbRMDinz3ptj4N1FAdUMUc=' 
WHERE 
  key_id = 'c91f021974431838ece4de6280ce2cad8459078550f931519295cab82d0cf60c' 
  AND (
    token = 'BN48XSgVXkB9tkKC5mBWlZbRMDinz3ptj4N1FAdUMUc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )