Firebase-database: Structure for event application with data consistency - json

Question

As many have before me, I am building an event app using Firebase as the database.
After watching this https://www.youtube.com/watch?v=i1n9Kw3AORw I think that my current data structure is wrong so I want to change it.
This is something that I hope will keep track of which events users have been to, their responses, check ins and help update user information like in the video.
{
"events": {
"event1": {
"title": "Event 1",
"venue": {
"venue1": true
},
"guests": {
"user1": true,
"user2": true
}
},
"event2": {}
},
"locationHistory": {
"location1": {
"user1": true,
"user2": true
},
"location2": {
"user3": true
}
},
"userCheckIns": {
"event1": {
"user1": true
}
},
"userResponses": { // not sure about these responses
"event1": {
"user1": true,
"user2": false,
"user3": "maybe"
},
"event2": {}
},
"eventGuests": {
"event1": {
"user1": {
"name": "user name 1"
},
"user2": {
"name": "user name 2"
}
},
"event2": {}
},
"userEvents": {
"user1": {
"event1": true
},
"user2": {
"event1": true
}
},
"venues": {
"venue1": {
"name": "Venue name",
"location": "location1"
},
"users": {
"user1": {
"name": "user name 1",
"events": {
"event1": true
}
},
"user2": {
"name": "user name 2",
"events": {
"event1": true
}
}
}
}
}