{
  "manageEntity": {
    "action": "Update",
    "entityId": "1062347977",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"My Playlist 256\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsea7xlvg3tzvvnp6fdjliae7s746d553h62fmkeq2rbvo2vlubqzfw\",\"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\":1780351713,\"track_id\":1719400650}]}}",
    "nonce": "0xe1dacf17c71cca31003125fb8221976caef7b1cbc909966ca1cd1a36fe0752f0",
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    "signer": "0xe843310494834103Ba1473dE3e5a3233118eC791",
    "userId": "428362958"
  }
}