1) Go to https://datapolis.city/trade
2) Connect your Wallet to the dapp. Make sure you are connected to the correct network.
3 ) Click on "You are selling" dropdown and Select Datatoken` from 'Select a Token' Modal
4) Click on "Select To" dropdown and Select OCEAN token.
5) Enter Datatoken amount you want to sell/swap for OCEAN. Click on 'Swap' button.
6) Check the displayed values (especially 'Minimum Received' and 'Slippage Tolerance'). Once done, click on 'Confirm Swap'
7) Confirm transaction on your selected Wallet
8 ) Once transactions are processed, you can click on "View on explorer" to view the confirmed transactions on relevant explorer for that network
That's it You have now successfully swapped Datatoken to OCEAN.