{
  "manageEntity": {
    "action": "Update",
    "entityId": "224438007",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd25a6386d6bebeb7f846565e9f5cdce36239a68972491c92fd542c315aee2a7f",
    "signature": "0xf9bd11c97d3940ffdd13b7c8b5a9d7dd17815d13d6e9d2ed8376db8aed0a473b6e4975335f4738118faf7ae92a88a8b0eb3456fd6a6601924c1e918d8f1d6a3e1b",
    "signer": "0x4311193589ef08f37Aa58EFCF244EE634159593a",
    "userId": "224438007"
  }
}