{
  "manageEntity": {
    "action": "Update",
    "entityId": "546166252",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarqomer4c5a2ijjqf3l3sltqfzi4iry5edeczj3qcjllzcnszousa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":2118801567}]}}}",
    "nonce": "0x1622c9f306902a438c2b1774855fb6be69d9b29ec3f5ba30700589c26027a2cf",
    "signature": "0x74e9b4eafd67b5ff908626200b902b1ce05ded71b83ba8c40250625a6025bcee61d46633b9e024c7f1b2fdc14a5401c0e6197f48415844424947e5a3049241cd1b",
    "signer": "0xc57645346D4df520211Ded3E5Dd676C1E3a8746C",
    "userId": "546166252"
  }
}