{
  "manageEntity": {
    "action": "Update",
    "entityId": "373597673",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xee028f1e4be4799a6ce253e2fe0a7ad8d1d2c581fa63503c73ac5f6ff2fda6e8",
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    "signer": "0xDd9810f0cAd8324C6052161344AB97927c5E211e",
    "userId": "373597673"
  }
}