Creating custom UTI for use with airdrop, iOS

I am using this code in my info.plist:

<key>CFBundleDocumentTypes</key>
<array>
    <dict>
        <key>CFBundleTypeName</key>
        <string>AirDrop Profile File Type</string>
        <key>LSHandlerRank</key>
        <string>Default</string>
        <key>LSItemContentTypes</key>
        <array>
            <string>com.apple.customProfileUTI.customprofile</string>
        </array>
    </dict>
</array>

to declare a custom file type, going by the answer here, and have looked at the linked sample code, but couldn't follow it very well. I have a structure that I am converting to data and then sharing with airdrop, and I am trying to understand how to create a data type such that the receiving device knows to open my app to receive the data.

Can anyone clear it up a bit for me?

Answer is followed up here