UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'Js79SCB/TRk3eVBYN5ytVtwJzfq1eUZjaMxdbMg/leI=' 
WHERE 
  key_id = '482c3c4628b31d6ebb150668c5e29cef0c2084dca1205382e6f5294d27b18152' 
  AND (
    token = 'Js79SCB/TRk3eVBYN5ytVtwJzfq1eUZjaMxdbMg/leI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )