{
  "manageEntity": {
    "action": "Update",
    "entityId": "372610427",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasdfyveqiuanqkfodja4m24ttfjpsy6avdehnt36uz22plgyn7ggq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1475387699}]}}}",
    "nonce": "0xb5644775763dd2cf50473a30b8183534253a2ff21f2737314d9490a77a569b02",
    "signature": "0x803911e65bcf2159691fb8e4f1760612f791b40707b632dd34053d28d9fb2f9c06aeb2d706898d81dc6ea13970aafa184942d5cf746cd736188d80fc7e1031011b",
    "signer": "0x84c83056EAd8D815aB13DF1FE8bEA5D48809d9e4",
    "userId": "372610427"
  }
}