curl --request POST \
  --url https://backend.swap.coffee/v1/dex/pool \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "user_wallet": "UQCNTO0Nh0Z7QNyRW1BLWfk08f2dAOw4izrx9sO6OUPg4DoV",
  "asset_1": "native",
  "asset_2": "EQCxE6mUtQJKFnGfaROTKOt1lZbDiiX1kCixRv7Nw2Id_sDs",
  "asset_1_amount": "<string>",
  "asset_2_amount": "<string>"
}
'

{
  "transactions": [
    {
      "query_id": 123,
      "message": {
        "payload_cell": "aSDinaTvuI8gbWludGxpZnk=",
        "address": "EQCM3B12QK1e4yZSf8GtBRT0aLMNyEsBc_DhVfRRtOEffLez",
        "value": "<string>",
        "state_init": "aSDinaTvuI8gbWludGxpZnk=",
        "extra": [
          {
            "id": 123,
            "amount": "<string>"
          }
        ]
      }
    }
  ]
}