UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uRdTWuiyqK+Kxeyoat8grv0+Y5wX9FBlLBUiTu1/Mq0=' 
WHERE 
  key_id = '6c9da878cdd7a18713320b9b9fa4e9a6e5724e22b168a5595264131a5b7a3d6a' 
  AND (
    token = 'uRdTWuiyqK+Kxeyoat8grv0+Y5wX9FBlLBUiTu1/Mq0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )