This proposal will:
- Accept an HRMP channel from Interlay to Phala
- Request opening an HRMP channel back from Phala to Interlay. This will allow assets to be transferred in between Interlay and Phala and open a path towards listing $PHA on the Interlay money market and more use cases for iBTC.
The XCM payload of 0x1a02083c01f00700003c00f0070000e803000000900100
decodes on Polkadot to:

I have tested this call with Chopsticks UI on both Phala and Polkadot.