{
  "manageEntity": {
    "action": "Update",
    "entityId": "72587755",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x60c7ebfa45ddab150c4d63f7cf8fe7007f66a316e21217f75483cce1ab8cb128",
    "signature": "0x251b9fc7b4b62be1f249223e8ae93f2577ec18224126955963f09b96350944b737507da35c2749e3cf36ecfe4ee0ea412d1b8307cb383f0a58f9c3d9124811d41b",
    "signer": "0xb87AAa3C0903A341ff13114a9C37f3C51d0B4615",
    "userId": "72587755"
  }
}