{
  "manageEntity": {
    "action": "Update",
    "entityId": "145339573",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"POP/ROCK\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsedclfxbos2drd6niy3de64hnirltkg5duyzfjibee3orbmskqoo72\",\"release_date\":\"2026-05-17T16:21:57.000Z\",\"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\":1779035445,\"track_id\":1609893350}]}}",
    "nonce": "0x7d706d031805ed69eec10236db0c08a7707eb71a298474547dcbc36ebd91b30a",
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    "signer": "0x12Dd122e04eDA14fA483f2F178ea67E04fd312B9",
    "userId": "388523895"
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}