{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b7f146175513e69bb56036eed95d578c3d1645ceb5f8770624b1fc1f8778d74",
    "signature": "0x7af005f62a8cca4c97b21f6609c49468eab54d6172cf0c4c1dba3678663bcf5b13009120da082cb661a087e085dfe8ce933097cbb59e29c422469687cf661e791b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}