Receive an event when someone joins the campaign
Format Example
{
"type": "participation",
"user": {
"firstname": "Lana",
"lastname": "Dr.",
"email": "lana@dr.com",
"referralCode": "abc123",
"createdAt": "2021-04-01 13:00:01"
},
"referrer": {
"firstname": "Nalyssa",
"lastname": "Gr",
"email": "nalyssa@gr.com",
"referralCode": "dfg456",
"createdAt": "2021-04-01 13:00:00"
}
}