{
  "manageEntity": {
    "action": "Update",
    "entityId": "48708572",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsedxg3uyyes4jevnhu5w4yftrcmjgmndmpumdvgh5vqemi53jeebwg\",\"release_date\":\"2023-08-06T13:55:53.000Z\",\"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\":1777928246,\"track_id\":469419152}]}}",
    "nonce": "0x8efb9ad61e369440a38118406a741c54869e379ccaf20295b23d1cab4774fba1",
    "signature": "0x145afb4b4a69b7895f65cf7ae50a7c8bd05e3ead2840ae410b4e1ffcf83bc33a6be8dbd0b008e749a96a394fe9857d1d374ebd8f72d21d28267c4340ec6dd68b1b",
    "signer": "0xb6b93847154a4D18ffF590EbeF00F4A4197F4905",
    "userId": "375133"
  }
}