{
  "manageEntity": {
    "action": "Update",
    "entityId": "1252896974",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"My Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsea3ijdqeuvcjfkvlbpdoor3srmfrsebrat57ctiabxfb3e23rmmxm\",\"release_date\":\"2026-09-11T15:14:00.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1789139672,\"track_id\":346354345},{\"timestamp\":0,\"metadata_timestamp\":1789139765,\"track_id\":810341}]}}",
    "nonce": "0xbb7d2d306579a1f920157d044a6108a6b307446e3b9866533a0c7fac2c1ab52d",
    "signature": "0x12373017e8275e3d7b4ec5298c8339a9352d7bb05ebc387ba8e91557a78aa54f3e73dc3578b2c064d398b5a4929784f6e4d5f31c262dfeee1934118bcd56fca91c",
    "signer": "0x03cFE69fB6C2eF6fbc9EaF66D25350b5F7fDA10C",
    "userId": "974139722"
  }
}