{
  "manageEntity": {
    "action": "Update",
    "entityId": "251542304",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradofutlcaxpznsb7ew3ott4l62xrsa5zm4k34np27j5s3mw5sssxq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1561706798},{\"type\":\"playlist\",\"playlist_id\":1181403937},{\"type\":\"playlist\",\"playlist_id\":1139300558},{\"type\":\"playlist\",\"playlist_id\":956601599}]}}}",
    "nonce": "0x41b208cbae91f9b87a56ed5961d93c780e5b44f322e873c9769973a686ca28b1",
    "signature": "0xdaf5c6504c651ff8b20dbc8817330047c0c358e95c35f0da22cfb1dad3a0d6761e312946f2062743e97f7655c0bcce77f6e831fa1d9ec1ffdbdc461e07490a1f1b",
    "signer": "0x17635500a2E4A8cfD5A57FfEb653Bc1A1E036bB5",
    "userId": "251542304"
  }
}