{
  "manageEntity": {
    "action": "Update",
    "entityId": "1562020446",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"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": "0xa44eddb416067b1dffb2243f45fe06445529e095743cba833b1fe6be2a12470a",
    "signature": "0x99057c5fa7d41a6bfa52b58d1ddb7761101d4c6f9ece29ac4c830dea4e2ebc1a3e3f064b5231216aa5585be55d6b655394c7020f3a56cb52cecf10bfc2ab3fd81c",
    "signer": "0x653E8A1211a113Faf517E089B75C948EC1ad9241",
    "userId": "292115993"
  }
}