{
  "manageEntity": {
    "action": "Update",
    "entityId": "436337892",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabzosago7a7d57zvw2ifrvchnoj6vrvubrdccvvswfaoib5jzz4bq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1009169111},{\"type\":\"playlist\",\"playlist_id\":1909882732},{\"type\":\"playlist\",\"playlist_id\":562390710}]}}}",
    "nonce": "0xebfe6f1e7921244defd6840bdd66b4311e8d8d43986bd7fe4a83bde731f97c28",
    "signature": "0x7c5fa50c8be364d93c8dafef5416b3e3100b3b5ae5c9c0eb6b530de92bd8076d03f9514ab38183132bf8d0a61d20d982ac4cc73aa084fe6268b0fe6801f5d3681b",
    "signer": "0xa8FAee271fbDADAbCCFD70eC63171F68D1D81006",
    "userId": "436337892"
  }
}