{
  "manageEntity": {
    "action": "Update",
    "entityId": "436764849",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x680fc6521ec29928fb047244f47a75db1f2d6e8535e610dc705d51ff3e95bf7d",
    "signature": "0x124b966858bb6ee574c55e91885ed432b92a4b5095d5d5319a7e75c6207094405ce05ddcc08c13c569c3095a08501b651eccd4e8856bb485c372b3041ea397311c",
    "signer": "0x40C5536b07BC8821E975B8925BD4C4bEd34a7daB",
    "userId": "436764849"
  }
}