{
  "manageEntity": {
    "action": "Update",
    "entityId": "385151156",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqsed5x7bqkwuguoqjgtgzqewc7xnjovouwrnhn3ezih3detmpzn67ni\",\"release_date\":\"2026-03-31T18:09:58.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":1775258469,\"metadata_timestamp\":1775258450,\"track_id\":126583200}]}}",
    "nonce": "0xff8d8cb797df7cb549fd3cd4dab6efbcc22e35bcbd13e7ab8335a593f9e5f645",
    "signature": "0x1528250f83870b41ee03de8497af6b360c28af11ca0d84eea9b555dd43c411f8072ff469db073edcc76e4bd0240cb827275b7e6a690b246718c4ed168f2bca701b",
    "signer": "0xb4E73C0642f86aA77C366Abd94586A5810D73F85",
    "userId": "727783207"
  }
}