{
  "manageEntity": {
    "action": "Update",
    "entityId": "823891201",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x08c947873134589fd51244606a49da4b5f3b587c463b9f62b52e7ba2e4fd1bdd",
    "signature": "0xf24f43288e8f7fd62d2b10f511776a5447fc1527d7546e5c9b7154d39b13c86a2ef9fe66b61cc5ed8f6ded86c7fedbebada29787f5b6eace29c2b3651eb8947c1c",
    "signer": "0x46768b7Bf76eb7c0057D3A3dD7Ab558603AaFFbd",
    "userId": "823891201"
  }
}