{
  "manageEntity": {
    "action": "Update",
    "entityId": "863921077",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x390d2833eac139388a0349d799278e97bda657ef8d650893f5ab8655039902a8",
    "signature": "0x04373e797b2bcb9cc72b967b235a92993bbacbbdf9c57528970c573ef17a62d4249a504d5e0a324bbf38740b89a26fee8e3ee310bb7d5b3b9468768ae5ad76521b",
    "signer": "0x2Be7ed6ED9E8fc866CB691E0d1B74A1E0C97f002",
    "userId": "863921077"
  }
}