{
  "manageEntity": {
    "action": "Create",
    "entityId": "903570883",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":903570883,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xb62d45a91df355a84462e3c9a4a23f4f429a67244888bf178282a8fa1a72247e",
    "signature": "0xd7fd87794214cdc2e18709b7f4a4471a50f37b5aa43c83bdf7b1b6edf718eb505ea3a20c657b494ed80a235a39871b1a63f1c1022615118a70008970b011a3871b",
    "signer": "0x4aa5a207F36Ff1E12cbEfB5ef08bb83F8bF21F68",
    "userId": "562613548"
  }
}