{
  "manageEntity": {
    "action": "Update",
    "entityId": "993419817",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierap3cp5hyexmg5r4fz577q524cs4pmizbsyliylftq4bwtjyu7mvbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":866860515}]}}}",
    "nonce": "0xb82ad014df25e44ad8bacbb2f503b119f06dcdb461151d418efc039b570fd5fa",
    "signature": "0xb579220deb3c0541a645019786a6b95b18832e1ec1af83d188f46c65cbf7a31b076f78084a638e9f8308f72ab656c1f683c76677bacf043e5eb5a9e445d24c621c",
    "signer": "0xFcD9d05AC2f057DBbA6efc59814F8C6ac7A18238",
    "userId": "993419817"
  }
}