{
  "manageEntity": {
    "action": "Update",
    "entityId": "350957781",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierap5wpvaaul535d5wcifrlt3tf6lxlel6brxlgci5ibyokhwwnq6bq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1851424531},{\"type\":\"playlist\",\"playlist_id\":1065725673},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":435677023},{\"type\":\"playlist\",\"playlist_id\":709284151}]}}}",
    "nonce": "0x565cbc7ea7f337c49a903ab23a4a8fbcefe5403ab172d86d9c72a8befadf84cd",
    "signature": "0xbf0f9486c0f7d10fdc359e57ca1d3f8fd03ef88508a49f1be0af977a65053341052e6432a40dfa57231530686fd7e313f7389e23c7463351775f99c85ac88d6f1b",
    "signer": "0x9742BFcda3E998678A9f313149c705E80899d5c5",
    "userId": "350957781"
  }
}