{
  "manageEntity": {
    "action": "Update",
    "entityId": "158578530",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d7b7caaad52547f1aa43aa37118a7e63e1cf1b74d88809ec24c0be507e5531b",
    "signature": "0x34828b231f456aba9ff2c7d5a20ae5462acc7360b7232f87698637c4bb24dc363120cd74184dedbf2d5c43418928d92a4087fea1279ef4e52ae2e27d75d0ccc21b",
    "signer": "0x24DD7aeA25248A54cb0113112D04b97D93fa581D",
    "userId": "158578530"
  }
}