UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '973xydVyary1y5GijBfqc7vmfHigCyIub9ZRAaYOMpc=' 
WHERE 
  key_id = '087a5fd01f8b78470f4929953c148d845dbf30fdf67865df841d74514cdf29d3' 
  AND (
    token = '973xydVyary1y5GijBfqc7vmfHigCyIub9ZRAaYOMpc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )