{
  "manageEntity": {
    "action": "Update",
    "entityId": "759135978",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8722205640b14540db1f7064831644ce9f2bf6afa93f6fc14c452c703298747f",
    "signature": "0x4fc5bd19a8831e96008d86823d7abfea82e2402cad421a93353acf526c6e70fa562463e73b98b087190c5b5fad0565aa07b9d41ce5900c5daf3ff64e77bb9bfb1b",
    "signer": "0x553e4A35dd873865028f618180529C768f5b9B13",
    "userId": "759135978"
  }
}