{
  "manageEntity": {
    "action": "Update",
    "entityId": "396813336",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3080ecf700d4704f28af1a169a6ca5c7b64f37a9d13d4e1995f86b99463279c4",
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    "signer": "0x2E39Deb0179969a4924bB77CDEfCE9b5D335D6df",
    "userId": "396813336"
  }
}