UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'b3/FE0923Bbd4dFjDODkqIcuI9XWT8AmqYQ4mAywV/A=' 
WHERE 
  key_id = 'c79e76099c7e687672f4cee651fdf91447762a74da2a94acd38726f5e4c1d536' 
  AND (
    token = 'b3/FE0923Bbd4dFjDODkqIcuI9XWT8AmqYQ4mAywV/A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )