UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '68pXRTZbb0b7e5RdQOgqpi5DvKfheD5eZhiSWtZKf7A=' 
WHERE 
  key_id = '7755ff1f7ea9ac6f02786166c613e14e8df47cd6f7a2c78d0185569e76655283' 
  AND (
    token = '68pXRTZbb0b7e5RdQOgqpi5DvKfheD5eZhiSWtZKf7A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )