{
  "manageEntity": {
    "action": "Update",
    "entityId": "373389478",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawwkjuykdqb65j2lkbcsyite6d27syjhxpnjucagrsxqwnbhitxua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":594686438}]}}}",
    "nonce": "0xe339ac6a8ab01526400df594817267c0026f031ee2eac767d80cd6784e04707a",
    "signature": "0xa7681f73c024b495f9e9bb4944462de4a3b0bc04e35498d3f705edba37e5fcea609e64e3e4a8e92b7db36e50fda2c9ed2038bc9e532eb54ad977b9ffd85d51241c",
    "signer": "0x5C696b98765A81339c4bC43a8c0f82d04B09eD74",
    "userId": "373389478"
  }
}