[
  {
    "createCollection": "app_user_identity",
    "validator": {
      "$jsonSchema": {
        "bsonType": "object",
        "required": ["_id", "version", "created_at", "updated_at", "issuer", "subject", "user_id"],
        "properties": {
          "_id": {
            "bsonType": "string",
            "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
          },
          "version": {
            "bsonType": "number"
          },
          "created_at": {
            "bsonType": "string",
            "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}Z$"
          },
          "updated_at": {
            "bsonType": "string",
            "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}\\.\\d{3}Z$"
          },
          "issuer": {
            "bsonType": "string"
          },
          "subject": {
            "bsonType": "string"
          },
          "user_id": {
            "bsonType": "string",
            "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
          },
          "migration_id": {
            "bsonType": ["string", "null"]
          }
        },
        "additionalProperties": false
      }
    }
  },
  {
    "createIndex": {
      "collection": "app_user_identity",
      "keys": {
        "issuer": 1,
        "subject": 1
      },
      "name": "app_user_identity_issuer_subject_key",
      "unique": true
    }
  },
  {
    "createIndex": {
      "collection": "app_user_identity",
      "keys": {
        "user_id": 1
      },
      "name": "app_user_identity_user_id_idx",
      "unique": false
    }
  }
]