Musare/backend/logic/db/schemas/activity.js

export default {
	createdAt: { type: Date, default: Date.now, required: true },
	hidden: { type: Boolean, default: false, required: true },
	userId: { type: String, required: true },
	activityType: {
		type: String,
		enum: [
			"created_account",
			"created_station",
			"deleted_station",
			"created_playlist",
			"deleted_playlist",
			"liked_song",
			"added_song_to_playlist",
			"added_songs_to_playlist"
		],
		required: true
	},
	payload: { type: Array, required: true },
	documentVersion: { type: Number, default: 1, required: true }
};