{
  "manageEntity": {
    "action": "Update",
    "entityId": "51627436",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0a30a9364d483eaf59d926f17df22a48d051b214175e1e1a445a5427030e85b3",
    "signature": "0xcecc864bceaa10829fe5bc1d46ddd19c57185351c1140dfaa6553255c2443ec96585a8bf499d7aa0afe057136073241644c93aa035176ae51340f98941031daa1b",
    "signer": "0x8410Fff41A21506513ADB15d7f9ccD924f5575bf",
    "userId": "51627436"
  }
}