{
  "manageEntity": {
    "action": "Update",
    "entityId": "304451196",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"This playlist will feature music i think you would love  but arent expose to.\",\"playlist_name\":\"Music you should know.\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseblggcuafwsqlpbpx5qbexuvxhdlf6yujmvuqqamxsezxpybqo46k\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1780157002,\"track_id\":488673}]}}",
    "nonce": "0x35c3e5aa487f09b901a473797a670afd4b228f4bab9cff7fa24f959d9a34131b",
    "signature": "0x9cf820a6f74ed9777ae92614a44ed0783d0bd45483d26fa71066cff0cee52a6b3129b94720d4ff3e9277af7c807af4756433f81b22aafde59e506e040c3d01bc1c",
    "signer": "0x187e187e9270c0Fea9497Fd7df2Ce47BE561E250",
    "userId": "106202"
  }
}