{
  "manageEntity": {
    "action": "Update",
    "entityId": "632120348",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb50ec298ea2db8196410be38133984f01f430e2d26543e87b3175b4d328facec",
    "signature": "0xf872b0418d09ced9de1b35745943b485ac1910826d81f441d59a00211c561d5e1a82bbf3cbaad6677ece989facf01fdf15fab8657202688570c78397d1fc6da01b",
    "signer": "0xF1E622923dCBDeB0fca925183E9C500e78F9ce9d",
    "userId": "632120348"
  }
}