{
  "manageEntity": {
    "action": "Update",
    "entityId": "89842462",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x3e7bd3468eb0c3f0fd0b4a74f08e0e5490c9d58d79a31955d43ac71a2bfaef18",
    "signature": "0x5969af2367ffd306505b0d6f6d486323fa3489a2c86011b88fb36d7a7cf8755e4b7a0748af5524748e5828b463b50333bf7709718908936c69f8f67d40ed70971c",
    "signer": "0x17141572B0250E4291cd034d4C034793AdD4876c",
    "userId": "777872195"
  }
}