{
  "manageEntity": {
    "action": "Update",
    "entityId": "36729",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajeubqd67ctx2cqyhtqxytjzfes2c7isu2klfrwndq6hxvjwb33jq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":8238},{\"type\":\"playlist\",\"playlist_id\":13569},{\"type\":\"playlist\",\"playlist_id\":13570},{\"type\":\"playlist\",\"playlist_id\":32252916}]}}}",
    "nonce": "0x719f45746868d44168caf6780dfb1f6eb7799e86265727bdfb17fc1f3be0ac91",
    "signature": "0x82a9d2179c83d186ccc1259088e4b83cf5652dbab66acd4ce13ba65462db430c2ee8f1645face926a3016422f331a6085a9468eece3040afbca8b35dddecddc91c",
    "signer": "0xAB351B40A1aA644aB69A226CbcdD66173883F432",
    "userId": "36729"
  }
}