Buttons in chat

[mikelustosa]

Buttons in chat:

"buttons": [
{
"id": "0",
"displayText": "Sim",
"subtype": "quick_reply",
"selectionId": "sim"
},
{
"id": "1",
"displayText": "Nao",
"subtype": "quick_reply",
"selectionId": "nao"
}
]

This is the JSON that returns the buttons.

Does anyone already know how I can send this object?