{
  "manageEntity": {
    "action": "Update",
    "entityId": "43686465",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradqwubyocd4wyguznim4mt7sc4yo5pgbesxbbtdsqb5kpv4imb3pq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":656389962},{\"type\":\"playlist\",\"playlist_id\":1848978522}]}}}",
    "nonce": "0x14a3dd27529cac878adddf2efaac97740f8ed7b0fc1ff9721a6c59868a454818",
    "signature": "0x47a5b66323b824cdc7ec1058cbcf23ccd24496930db6600d92701c1b314126ca25a2a6cd4396f7101c4084e00946674fe1c5dcbb16c11b08c9a510b8a02c5d901c",
    "signer": "0xe6896f375EfDD7aE22ea0E0958a36f1Ac1861a95",
    "userId": "43686465"
  }
}