{
  "manageEntity": {
    "action": "Update",
    "entityId": "218431934",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9da3fa283476bed2e7eef1e4256e01324ce8e2afd3695a69f8802e9a8fe9461d",
    "signature": "0xbcef0b4441b4e0d7cdc3c76da23c71d383a264f9a7dac9736600be77e886c33e58828b7194b7a37a5a40d3d97091d05488a5f24800677c71e387c2a136fc39d61c",
    "signer": "0x47f9532Ae132f81E27133650Daa5224B50507766",
    "userId": "218431934"
  }
}