{
  "manageEntity": {
    "action": "Update",
    "entityId": "308333256",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa14ad5bde0f63e51113371629ed5c4b6ab9923a40818b90b456908455b8c7839",
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    "signer": "0x70EAd9e78f2bDA62592Df544b32FA36e4Ae4aF5F",
    "userId": "308333256"
  }
}