curl --request POST \
--url https://zapi.hubmessage.io/channels/{channel_id}/token/{channel_token}/send-button-pix \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"phone": "5511999999999",
"pixKey": "12345678900",
"type": "CPF",
"merchantName": "Hub Message"
}
'