UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MTD15vQMmhshYm1QNZ5fwrr6iFp2L3zO6tMQT/L10iE=' 
WHERE 
  key_id = '751be816302c03ab750ea53816d6d86bf6501aa145eace6953e27bae88ccc78a' 
  AND (
    token = 'MTD15vQMmhshYm1QNZ5fwrr6iFp2L3zO6tMQT/L10iE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )