{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1cd17cded5ae6839a95d6de4494e87c011737ae8473ec0409ecd87ae2488614e",
    "signature": "0x3eba96253e135fd6327851f71ce99becfe00b608bf984b36b7f600044a5ee6c03505ea1737c923fb35bd300b2d2a3881be97d6d29a116875c5cdf6eb3ee250541c",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}