Add SWP as a collateral for Kava Mint

1. Parameter change cosmos.params.v1beta1

   {
       "@type": "/cosmos.gov.v1.MsgExecLegacyContent",
       "content": {
           "@type": "/cosmos.params.v1beta1.ParameterChangeProposal",
           "title": "Add SWP as a collateral for Kava Mint",
           "changes": [
               {
                   "key": "CollateralParams",
                   "value": "[{\"denom\":\"bnb\",\"type\":\"bnb-a\",\"liquidation_ratio\":\"1.500000000000000000\",\"debt_limit\":{\"denom\":\"usdx\",\"amount\":\"6000000… (3,941 characters)",
                   "subspace": "cdp"
               },
               {
                   "key": "GlobalDebtLimit",
                   "value": "{\n        \"denom\": \"usdx\",\n        \"amount\": \"305000000000000\"\n      }",
                   "subspace": "cdp"
               }
           ],
           "description": "The purpose of this proposal is to add SWP token as a collateral type to Kava Mint. This provides additional use case and source of value for the SWP token as SWP token holders will now be able to mint USDX and participate in more investing / trading strategies. Parameter changes include: Borrow APY: 5%. Liquidation Ratio: 150%. Liquidation Penalty: 7.5%. Pricefeed: 30min. Debt Limit: 10M. USDX Max Auction Size: 50,000 SWP"
       },
       "authority": "kava10d07y265gmmuvt4z0w9aw880jnsr700jxh8cq5"
   }

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