{
  "manageEntity": {
    "action": "Update",
    "entityId": "448151336",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraitrf45c44nndb452m7qwq46vj3riv4brpul5iqob7vixcpnnrena\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2041763848}]}}}",
    "nonce": "0x59e68fc81a817555081385c1c80460a5fd3a12a59267c1a0d27a1ae638c41d6d",
    "signature": "0xcb7de4b5d90e39faf6068b8ed3ae558b9c155c496540194bd39fa24c180941f94c41dc656b8c1e3b1f5dd0bd3394202bd84ea0535072542115a9fecafec04c051b",
    "signer": "0xbD7a3e84747148187384D49EED4F6728518e23Bc",
    "userId": "448151336"
  }
}