Transaction

{
  "set_collection_bid": {
    "collection": "cosmos1hl7pl0fp04qtmf9s0l250fhtelhyxlnmla0htat99z6n34anh5tqc4zqd3",
    "details": {
      "price": {
        "amount": "18000000",
        "denom": "uatom"
      }
    }
  }
}