UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9n2sy2nJ8ql4zV2I2/A/Skgh4QVO8cwQCLalzOsUOO4=' 
WHERE 
  key_id = '28a55e5ae549b1dddd62806614270f92f45d3dd04bb3d3ca4ffa6bce7d4bfdf3' 
  AND (
    token = '9n2sy2nJ8ql4zV2I2/A/Skgh4QVO8cwQCLalzOsUOO4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )