{
  "manageEntity": {
    "action": "Update",
    "entityId": "423462177",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x607cb6cc218ef078d53edf15d9eb4b521258f3b58c4a7c1ef67ece85d4dce7fe",
    "signature": "0xc9b603463fa8da6e9602cda483f74856548b7cc6bacb41a2a6dba8037235dcc07a4338fe9aa8f3e3abf389ff9c0111c28564013f01fc4c4d01613dad505863681c",
    "signer": "0x463C9186e9BFa098e28d0845ED9dEd4f78470a01",
    "userId": "423462177"
  }
}