UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YrJhSNuWSStWgJYFsMhi1irJQkwfjsa3CvYH3hvHalU=' 
WHERE 
  key_id = '819649c56932033622c7e8b59a0f0a693c949df774f8538c0cf2677c690e5f82' 
  AND (
    token = 'YrJhSNuWSStWgJYFsMhi1irJQkwfjsa3CvYH3hvHalU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )