{
  "manageEntity": {
    "action": "Update",
    "entityId": "871599865",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"this is x13\",\"playlist_name\":\"x13\",\"is_private\":true,\"license\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"playlist_contents\":[{\"timestamp\":1780740756,\"track_id\":1756111849}],\"is_stream_gated\":false,\"stream_conditions\":null,\"is_scheduled_release\":false}}",
    "nonce": "0x40a2d7eab49bc3ee7d6b21b56e5e76f5bda96c7e9af0b456faff1825dcaa9e2a",
    "signature": "0x05157e3ebca921064ffd15dd5614ec1b4da4e0b2dd714dd187a0d5ef9002ca72435294f3350924c52fb939b69faabf2c3639c5f5405a551713c8f0279052c5991c",
    "signer": "0x88c769B5594fA1e5AEc33e17472E952E788bb0E3",
    "userId": "147939951"
  }
}