{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf9b2d8f944f96debd9b4f3e4dc249957030889294a17edb4f720c329eec3d07c",
    "signature": "0xe52a57476b0a3cf4a9217857e0b8135d6a0a80bfec2bf537352cafd983b2bb9c4d8bc1edb858a208675b38a9104eb371f217d4cf0b906c7d4898305d6c1423cd1c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}