{
  "manageEntity": {
    "action": "Update",
    "entityId": "869666854",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x978a6117b950b3c37c659c8bd0c8982ffe1c3b3252ea73498fa43d475b38baf7",
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    "signer": "0xa22F991437bE84d4Db7656726Cfe53Db3678757D",
    "userId": "869666854"
  }
}