{
  "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\":1779035446,\"metadata_timestamp\":1779035445,\"track_id\":1609893350},{\"timestamp\":0,\"metadata_timestamp\":1779035457,\"track_id\":693085503}]}}",
    "nonce": "0xd747e02f4f441b159a685f2b55f7cd43f10c75a6471426303f6700ac94d4ecb1",
    "signature": "0x2eb88148678581eaaef27e26f43b9d9cedaf9f9e4f8e0b6de65e438193b1c86a247bdcea6afbb86c2304148488377d931613803eeba741ab1da13d485511b4811c",
    "signer": "0x12Dd122e04eDA14fA483f2F178ea67E04fd312B9",
    "userId": "388523895"
  }
}