UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KHFBdSV948BSP3IGfPAzcNUd2gA/t5xCNT6C8yj0cdM=' 
WHERE 
  key_id = '6934e396e3373eae9029684548816c617d2dec881e047f0ec397a540c1164f2d' 
  AND (
    token = 'KHFBdSV948BSP3IGfPAzcNUd2gA/t5xCNT6C8yj0cdM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )