UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4ANThWJBy+Tymz/Xk0m0CSG59+gwxX48fPuE1MdJqfE=' 
WHERE 
  key_id = '93479ad3c7ed094a9c0de0215dabf02b97830201afebcb5912b2c549e7f820c9' 
  AND (
    token = '4ANThWJBy+Tymz/Xk0m0CSG59+gwxX48fPuE1MdJqfE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )