UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MjIWgWKB5tUuTXFtjrhqGwNwyjUFp41DAGf41WzXmgM=' 
WHERE 
  key_id = '81267cd44df6bc71abbd2a0def82997a7994b81eceb26e78e8109d6550dbe496' 
  AND (
    token = 'MjIWgWKB5tUuTXFtjrhqGwNwyjUFp41DAGf41WzXmgM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )