curl --location --request GET 'https://iot.exati.com.br/pubsub/failedMessages/?guiaUuid'
{
"messageKey": "string",
"endpoint": "string",
"messageContent": "string",
"error": "string",
"attempts": 0,
"idClient": 0,
"createdAt": "2019-08-24T14:15:22Z",
"operationCode": "IOT_HUB_DEVICE_UPDATE"
}