{
  "manageEntity": {
    "action": "Update",
    "entityId": "425911249",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4191da481f4f6094e972a5dcb41d5b340d0f0f5d350a49266dee4fb7c9d143cc",
    "signature": "0xb081939d315168e6e022a32a5c0baa4037b7ea288733ab1f312ed5029a88310e6919c5e80005b34e1470979afaf275901aae09ab879347df314a425b8410bbec1b",
    "signer": "0x64A87DD582aE730Ab32B930B93c13612Fc496891",
    "userId": "425911249"
  }
}