{
  "manageEntity": {
    "action": "Update",
    "entityId": "263523771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x895a6e1ea945067cef275690300b676b353f1c08c46005d37d3c06b0ece7237e",
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    "signer": "0xCb31556E80e6e158AAd49c88c842fbD8bFE9A3D6",
    "userId": "263523771"
  }
}