Azure Storage Accounts Update History Property Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/azure-storage-accounts/refs/heads/main/json-structure/azure-storage-accounts-update-history-property-structure.json",
  "description": "An update history of the ImmutabilityPolicy of a blob container.",
  "properties": {
    "immutabilityPeriodSinceCreationInDays": {
      "description": "The immutability period for the blobs in the container since the policy creation, in days.",
      "readOnly": true,
      "type": "integer"
    },
    "objectIdentifier": {
      "description": "Returns the Object ID of the user who updated the ImmutabilityPolicy.",
      "readOnly": true,
      "type": "string"
    },
    "tenantId": {
      "description": "Returns the Tenant ID that issued the token for the user who updated the ImmutabilityPolicy.",
      "readOnly": true,
      "type": "string"
    },
    "timestamp": {
      "description": "Returns the date and time the ImmutabilityPolicy was updated.",
      "format": "date-time",
      "readOnly": true,
      "type": "string"
    },
    "update": {
      "description": "The ImmutabilityPolicy update type of a blob container, possible values include: put, lock and extend.",
      "enum": [
        "put",
        "lock",
        "extend"
      ],
      "readOnly": true,
      "type": "string",
      "x-ms-enum": {
        "modelAsString": true,
        "name": "ImmutabilityPolicyUpdateType"
      }
    },
    "upn": {
      "description": "Returns the User Principal Name of the user who updated the ImmutabilityPolicy.",
      "readOnly": true,
      "type": "string"
    }
  },
  "type": "object",
  "name": "UpdateHistoryProperty"
}