{
  "manageEntity": {
    "action": "Update",
    "entityId": "62219567",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe83bc9378bc11773ff0cfa350f394bac76eece48784650aa1f43f69165b375ae",
    "signature": "0xf95fb0b048f8a728491e089bb9b15d4db8b9b3206e5553ccfc29bef53db535645167b544ee505b904943c9b722dca3ba693e724164616f2624ddd8491d65e9e71b",
    "signer": "0xc978e9D01005C9E552BE722797808DeC105cc59D",
    "userId": "62219567"
  }
}