{
  "manageEntity": {
    "action": "Update",
    "entityId": "810985576",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x110574785abf05b38ff9307306e21eea076e65f1a61f92131af5ede44092fba3",
    "signature": "0x52ad405af475595c7b95d6d4981aa4e2a15006a84ed0d93005ac4719c09df00f7b0b19738ee4d0166f662d8a48add3fb56090986407801dd715865d89752cfee1c",
    "signer": "0xA301d747958dCbd6bedDFA4997DA85DA27707533",
    "userId": "810985576"
  }
}