UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iJU1kKkbySCERwx/yrej/rr/zHoTDilRxeqq7TKM/LA=' 
WHERE 
  key_id = '70d368017332ed9c637acf8ff75c41a5ccb30651012a43456d759d3d88e58251' 
  AND (
    token = 'iJU1kKkbySCERwx/yrej/rr/zHoTDilRxeqq7TKM/LA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )