UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YYkdn0LOKEU6G6a9tKhESg5llFRrOWBYdKRHbCrJZ7c=' 
WHERE 
  key_id = 'c5a2c55ce3b51bd0ada8fb5ebc98981dec257029b4bfb47a8d2bf7a7a5c885c4' 
  AND (
    token = 'YYkdn0LOKEU6G6a9tKhESg5llFRrOWBYdKRHbCrJZ7c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00040