UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DVmwIm+hm3pYeNddOPNNG3v1pxWwAFw2KO88xfbHoE8=' 
WHERE 
  key_id = '36567e5015a3e56cf2946d1f4e707999c0d5ad8f93efec137ea9c398fb6e89e8' 
  AND (
    token = 'DVmwIm+hm3pYeNddOPNNG3v1pxWwAFw2KO88xfbHoE8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00026