Create Transaction Calldata

curl --request POST \
  --url https://trade-api.gateway.uniswap.org/v1/send \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "sender": "<string>",
  "recipient": "<string>",
  "token": "<string>",
  "amount": "<string>",
  "chainId": 1,
  "urgency": "urgent"
}'

{
  "requestId": "<string>",
  "send": {
    "to": "<string>",
    "from": "<string>",
    "data": "<string>",
    "value": "<string>",
    "gasLimit": "<string>",
    "chainId": 1,
    "maxFeePerGas": "<string>",
    "maxPriorityFeePerGas": "<string>",
    "gasPrice": "<string>"
  },
  "gasFee": "<string>",
  "gasFeeUSD": "<string>"
}