enter_location = {
  "type": "presence",
  "subType": "enterLocation",
  "sphere": {
    "id": "sphere_id",
    "name": "sphere_id",
    "uid": 84
  },
  "location": {
    "id": "location_id",
    "name": "location_name"
  },
  "user": {
    "id": "user_id",
    "name": "user_name"
  }
}

exit_location = {
  "type": "presence",
  "subType": "exitLocation",
  "sphere": {
    "id": "sphere_id",
    "name": "sphere_id",
    "uid": 84
  },
  "location": {
    "id": "location_id",
    "name": "location_name"
  },
  "user": {
    "id": "user_id",
    "name": "user_name"
  }
}

enter_sphere = {
  "type": "presence",
  "subType": "enterSphere",
  "sphere": {
    "id": "sphere_id",
    "name": "sphere_id",
    "uid": 84
  },
  "location": {
    "id": "location_id",
    "name": "location_name"
  },
  "user": {
    "id": "user_id",
    "name": "user_name"
  }
}

exit_sphere = {
  "type": "presence",
  "subType": "exitSphere",
  "sphere": {
    "id": "sphere_id",
    "name": "sphere_id",
    "uid": 84
  },
  "location": {
    "id": "location_id",
    "name": "location_name"
  },
  "user": {
    "id": "user_id",
    "name": "user_name"
  }
}