UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '81MEnLWYd71f5Hb9XsZewGvwOVNDNxZF7H3Jf1O+LQc=' 
WHERE 
  key_id = '6b5aad7bbbdc174b7a3515fc21633c9b59a978cd2925b10b4146366a1d168efd' 
  AND (
    token = '81MEnLWYd71f5Hb9XsZewGvwOVNDNxZF7H3Jf1O+LQc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )