{
  "manageEntity": {
    "action": "Update",
    "entityId": "720304072",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8804b085fbb7625216ecbbf345fde801bbf503d12687c5a39af3abc65e1e1aee",
    "signature": "0x1cd4998ed2891b21ba7a2399b6ff851d45d9a1aa47320508c310ef2c9b5111ee3b567391175781d2a5ce86fec01c3f93cce98eeaa35d333df1c419721ce738be1b",
    "signer": "0x531fD734Bc4CA4FcCA203a3E7e2f564BE7861188",
    "userId": "720304072"
  }
}