Transaction

{
  "set_collection_bid": {
    "collection": "cosmos1kg4sl7frzxykhdpn9jkh5734a6u2fhkclpayl2x43f7ela2x37nqml7uuu",
    "details": {
      "price": {
        "amount": "500000",
        "denom": "uatom"
      }
    }
  }
}