{
  "manageEntity": {
    "action": "Update",
    "entityId": "169228549",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseccyemmgconkuppyujrfq5uxssf4tzi3i47b52oynisfvcnk7tfra\",\"release_date\":\"2026-04-01T23:43:57.000Z\",\"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\":1775091100,\"track_id\":1317111864}]}}",
    "nonce": "0x31275fb4921157df4d5856fc85076f19d8117767df1360363c8982a73a744209",
    "signature": "0x39e51649981b5b3c8f597298fca62cfea7f8a9a02837c47fb0cc91895a1f635645da8f7d3f678c0115004186211bd5cbf9b97c4d8ce226963895f83202edfff01c",
    "signer": "0x66897996b38D5FBFfa383eD077e429C63B8AD506",
    "userId": "904230991"
  }
}