UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kHrFLSU6mjCO+rtJzQ6HCnBUxdkXhUVvCFKRGIsB+lg=' 
WHERE 
  key_id = '81af4e84c7ded856a6f30d5904d3415e1177004be5eb5e0b87c8db1b0e50cae1' 
  AND (
    token = 'kHrFLSU6mjCO+rtJzQ6HCnBUxdkXhUVvCFKRGIsB+lg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )