curl --request GET \
  --url https://api.dfns.io/permissions/{permissionId}/assignments \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "id": "<string>",
      "permissionId": "<string>",
      "identityId": "<string>",
      "isImmutable": true,
      "dateCreated": "<string>",
      "dateUpdated": "<string>",
      "pendingChangeRequest": {
        "id": "<string>",
        "requester": {
          "userId": "<string>",
          "tokenId": "<string>",
          "appId": "<string>"
        },
        "status": "Applied",
        "entityId": "<string>",
        "dateCreated": "2023-11-07T05:31:56Z",
        "dateResolved": "2023-11-07T05:31:56Z",
        "approvalId": "<string>",
        "kind": "Assignment",
        "operationKind": "Create",
        "body": {
          "id": "<string>",
          "permissionId": "<string>",
          "identityId": "<string>",
          "isImmutable": true
        }
      }
    }
  ],
  "nextPageToken": "<string>"
}