UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ekh9IcSPprRahaxNaOXQbLD2vDV5j8F46/gFv9h6JVE=' 
WHERE 
  key_id = '51e192fb534167900f00269f761cc0db48c39f1b7a3dab57254096f69fab759d' 
  AND (
    token = 'Ekh9IcSPprRahaxNaOXQbLD2vDV5j8F46/gFv9h6JVE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )