{
  "manageEntity": {
    "action": "Update",
    "entityId": "703802051",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsecxypqepu6lgb6dtzez6qtjwqgooadqvntwnemrobftxvn4p3j2cw\",\"release_date\":\"2025-05-21T17:19:10.000Z\",\"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\":1775848416,\"track_id\":11050},{\"timestamp\":0,\"metadata_timestamp\":1775848418,\"track_id\":18770},{\"timestamp\":0,\"metadata_timestamp\":1775848420,\"track_id\":6794},{\"timestamp\":0,\"metadata_timestamp\":1775848424,\"track_id\":804078527}]}}",
    "nonce": "0x18de6800d299e10457b02f4ca6973e06f80c6f5447647fbf60741636a861c8f5",
    "signature": "0x500f25cd78cabfe44597df679bf1b6dc8b7c33d7922efcad86164cc689ac8209546e4da2171ef967f58fe0e933d88ada1f3b5e14124824888d92a96178a9e0a21c",
    "signer": "0x6687B667182cfdc5646f5AEB14a9945c9b1d3A6B",
    "userId": "100"
  }
}