{
  "manageEntity": {
    "action": "Update",
    "entityId": "550557206",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2oz35ceeizf6pjppfnjkmknincg4c23szmp4pvil36f3ubzkz33a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1434692857},{\"type\":\"playlist\",\"playlist_id\":1459844573},{\"type\":\"playlist\",\"playlist_id\":433461322},{\"type\":\"playlist\",\"playlist_id\":1862928833},{\"type\":\"playlist\",\"playlist_id\":338076579},{\"type\":\"playlist\",\"playlist_id\":2042999254},{\"type\":\"playlist\",\"playlist_id\":1167027634},{\"type\":\"playlist\",\"playlist_id\":2109778367},{\"type\":\"playlist\",\"playlist_id\":1578472398},{\"type\":\"playlist\",\"playlist_id\":397342627}]}}}",
    "nonce": "0x82aa495fadf34f776db822a732455f99cb6de769bd2c63d38bfc79ecaaa7f8b4",
    "signature": "0x3d7fd1d787f62bba79653d03635a347b2956adcdbdc49168557f3698c172f9ad517fcfecce3613c2e27225ea283ce5c32d3b9d574e5606fad25b9b556668a4d51c",
    "signer": "0xE837e052F61622F70fAE29E877A7adAA6b3039c8",
    "userId": "550557206"
  }
}