{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "quest": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100,
      "pattern": "^[a-zA-Z0-9_-]+$"
    },
    "member": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100,
      "pattern": "^[a-zA-Z0-9_-]+$"
    },
    "enrolledAt": {
      "type": "integer",
      "minimum": 0,
      "maximum": 9007199254740991
    },
    "revision": {
      "type": "integer",
      "minimum": 0,
      "maximum": 9007199254740991
    },
    "withdrawnAt": {
      "anyOf": [
        {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        {
          "type": "null"
        }
      ]
    },
    "withdrawalReason": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    }
  },
  "required": [
    "quest",
    "member",
    "enrolledAt",
    "revision",
    "withdrawnAt",
    "withdrawalReason"
  ]
}