{
  "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\":1775489085,\"metadata_timestamp\":1775489085,\"track_id\":963588},{\"timestamp\":0,\"metadata_timestamp\":1775489183,\"track_id\":645831}]}}",
    "nonce": "0xde3f5733663b78c360e2fbc0275396e0fc0622e5e104920df84ad8f1fcb41984",
    "signature": "0xd47b5d20ce1a928c8853b191f19a4d1aa643a973075c8d746b9c45b70855484a5af7855b76ccf99f96008bd6cb51a40a3f8c837e646e40d28d5b21884c50b6c31b",
    "signer": "0xFDaA8d18dA975819Dff816CA1A274097f8a72c16",
    "userId": "36320325"
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}