{
  "manageEntity": {
    "action": "Update",
    "entityId": "829458818",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa03cfd719a466b3c1e32ea5a723c29e1a1ea6323a505a331ab326349a49ad5f4",
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    "signer": "0xdb5Cb435b7cb6239B66F90AE3D80297c020464d9",
    "userId": "829458818"
  }
}