{
  "manageEntity": {
    "action": "Update",
    "entityId": "871037550",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsebsikuug3snobh5wcmcxb22bicyzp7r4hfuh46j66ex6ye4yizwdq\",\"release_date\":\"2026-04-28T16:51:15.000Z\",\"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\":1777395083,\"track_id\":54045213}]}}",
    "nonce": "0xa665402381e06245d5335b02a523579d395f778ea6009c7559aee0e8d8b335fd",
    "signature": "0xa33b97440bfc4e77e2faabf261fb5e60fdb67cc5de9d7e6bdcd3655bebf21c0146a7fca5c9bb667593bf77cda7d43238740016aef3d50d0bee515e8b493c67841c",
    "signer": "0x705C3Be1F27A9694A390A0a58287440a6b43349E",
    "userId": "193978537"
  }
}