{
  "manageEntity": {
    "action": "Update",
    "entityId": "850489604",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarzobxnydkromlkx3fgdjmmbjvd5dbafyqnmrkdfg2zj35b4ggfna\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1248699039},{\"type\":\"playlist\",\"playlist_id\":641724839},{\"type\":\"playlist\",\"playlist_id\":2022877432},{\"type\":\"playlist\",\"playlist_id\":1254547605},{\"type\":\"playlist\",\"playlist_id\":259617639},{\"type\":\"playlist\",\"playlist_id\":2071253854},{\"type\":\"playlist\",\"playlist_id\":1217251542}]}}}",
    "nonce": "0xf84ce582a9b06d88b308c73967f8be45db7b0f19fb7ebce8d7bf57b984f53d13",
    "signature": "0xc70cdf52fe59be8c427120987d4c8c979f88679d20eeb891fe52a9522cae0d5f514012aa25e340c330bbac17b4801c02757f396a769e3b2a3002a94af8e434cd1b",
    "signer": "0xE58798A8eCCb4b8474bdDB89D94c8151E7BD4D10",
    "userId": "850489604"
  }
}