{
  "manageEntity": {
    "action": "Update",
    "entityId": "1622462337",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"playlist 1\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqsecvjak3czzpcq4hcg47g43nmviiantufpxy2izq4avj3vvlp7jl4u\",\"release_date\":\"2026-09-02T09:52:01.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1788342922,\"track_id\":2043518222},{\"timestamp\":0,\"metadata_timestamp\":1788342929,\"track_id\":1134548176},{\"timestamp\":0,\"metadata_timestamp\":1788342937,\"track_id\":770135040}]}}",
    "nonce": "0xed35b64ecb7059a5568d6999dd2f68164636ee5cdb39f9f855b0922804a307d9",
    "signature": "0xadc36da24b632fdfdc705ec6d506bc84af721397e4b57649badd6ea8cd8e9e3c40cde5de5caf910f42632410c41551a8d5c6c3a50100cd17ec9baa21467696041c",
    "signer": "0xb5c767030e9D6cB1813Bd99342D3ab8eF81cE393",
    "userId": "345461669"
  }
}