UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tL6ZFo2ouHYNkM3JuHqnJqw27IHtIu2GmdSu4Ae/meU=' 
WHERE 
  key_id = '42de679b5dfe4ccb2a054ffb15079a93e7abe72f3f0a1ed5655b7b617534839c' 
  AND (
    token = 'tL6ZFo2ouHYNkM3JuHqnJqw27IHtIu2GmdSu4Ae/meU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )