Webook deauthorization, what to do after receiving the data from zoom?

Hello, I am trying to implement the deauthorization webhook, what I have not been able to understand yet is what to do after receiving the following json:
{
“event”: “app_deauthorized”,
“payload”: {
“account_id”: “EabCDEFghiLHMA”,
“user_id”: “z9jkdsfsdfjhdkfjQ”,
“signature”: “827edc3452044f0bc86bdd5684afb7d1e6becfa1a767f24df1b287853cf73000”,
“deauthorization_time”: “2019-06-17T13:52:28.632Z”,
“client_id”: “ADZ9k9bTWmGUoUbECUKU_a”
}
}