UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rItpw0LORNJOStyS1UmLTeefppJTHpgEx1FvyhnKJdY=' 
WHERE 
  key_id = '51f0d2d8c56e4beeea9ffe0ecadc0dde03bda7c944a53283c7ac50e0c8afa490' 
  AND (
    token = 'rItpw0LORNJOStyS1UmLTeefppJTHpgEx1FvyhnKJdY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )