{
  "manageEntity": {
    "action": "Update",
    "entityId": "757013463",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieray7yv6qvu4gkyzbgfjqsf7vua3mw2shs4d47fgl4v3vxpca4jyw7a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1088937055},{\"type\":\"playlist\",\"playlist_id\":489098719},{\"type\":\"playlist\",\"playlist_id\":694015459},{\"type\":\"playlist\",\"playlist_id\":1295891186}]}}}",
    "nonce": "0x920f31e807f32b5b381529ffbfae6d449e36a9cc3a364ef358699e2501d5000c",
    "signature": "0xa0e6653ca15452afdb70fa09c6c1c5064b9d2e91cb90433c0aaf5ef102bc302474a83fe5466012c628135317c6b7843c5f45d0376d27e692279ae073889bf0da1c",
    "signer": "0xa6da5532f61f2004913a6012d3973205336c6d51",
    "userId": "757013463"
  }
}