{
  "manageEntity": {
    "action": "Update",
    "entityId": "208392258",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfaf2769535dc42c1a2b89a9eb98888f9a90d1386560a296caa5f1fd4345f7fb3",
    "signature": "0xd18a20d7a50ccdb077b4a671bfa95c6d5e858788267d8883ec47d0ef7c032fba4fa13c9d6d46c6e3cbcf4b27912588fef8b30cd43fbff5872af4751da5a030e61c",
    "signer": "0xDef30Bc85a922d00C0396c9C8b0D233D0654b6f5",
    "userId": "208392258"
  }
}