query TripAlert($eventId: ID!) {
  eventTripAlert(event: $eventId) {
    data {
      id
      attributes {
        address
        enabled
        radius
        longitude
        latitude
      }
    }
  }
}
mutation SetTripAlert(
  $eventId: ID!
  $enabled: Boolean
  $latitude: Float
  $longitude: Float
  $address: String
  $radius: Float
) {
  setTripAlert(
    event: $eventId
    latitude: $latitude
    longitude: $longitude
    address: $address
    radius: $radius
    enabled: $enabled
  ) {
    data {
      id
      attributes {
        latitude
        longitude
        address
        enabled
      }
    }
  }
}