{
  "manageEntity": {
    "action": "Update",
    "entityId": "121660860",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"A handpicked selection.\",\"playlist_name\":\"Fujimo Radio\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsebisdhnnzzhk5ilo2jltinqbye33sv6w3zfl3evjtc7k55c7hi62u\",\"release_date\":\"2026-04-06T15:13:52.000Z\",\"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\":1775489085,\"track_id\":963588}]}}",
    "nonce": "0x8d96b7e0a0c81fed5c1d3d2f33f663f3a577211516a23b8efd182848b71fa8f3",
    "signature": "0x4002ebbf5049d8a79172fd68bd7be0350724f8265348c4d4cf64d08b0cfec4c84942844d4c056c62aa2a3b537fcbed6fb080a2a6d3ddb430111757cfc230464b1c",
    "signer": "0xFDaA8d18dA975819Dff816CA1A274097f8a72c16",
    "userId": "36320325"
  }
}