1. Open the OKX wallet, go to the OKX Cryptopedia Campaign section and access the Meson task section, and click “Start now”

1. Choose the source chain in “FROM” section, the amount to swap is at least 50 USDC to complete the task. Confirm the destination chain as zkSync Era in “TO” section. Click “SWAP”. Notice: Meson supports the swap between 21+ public chains and L2 chains. The first 5 swaps/$5000 per day won’t be charged any service fee. The LP fee will be adjusted based on ETH transaction congestion.

1. Click “APPROVE” and confirm the usage of USDC.

1. Sign the transaction for each step and finish the swap.

1. After completing the cross-chain transfer, a sharing poster window will automatically pop up. If you find Meson useful, you can click the "Share" button to share it. After completion, click the "X" button in the upper left corner to close the window. The data update takes approximately 5 minutes, then go back to the Meson interactive task section, click "Verify" and claim the OKX NFT!