curl --request POST \
  --url https://api.minaexplorer.com/broadcast/delegation \
  --header 'Content-Type: application/json' \
  --data '
{
  "publicKey": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
  "signature": {
    "field": "18272595141380250584469604897229002416332940517678367847162300084194223829287",
    "scalar": "14023806555216748787769239497115189883629278190444711668661465519595755765526"
  },
  "payload": {
    "to": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
    "from": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
    "fee": "1000000000",
    "nonce": "1326",
    "memo": "Broadcast API",
    "validUntil": "4294967295"
  }
}
'

import requests

url = "https://api.minaexplorer.com/broadcast/delegation"

payload = {
    "publicKey": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
    "signature": {
        "field": "18272595141380250584469604897229002416332940517678367847162300084194223829287",
        "scalar": "14023806555216748787769239497115189883629278190444711668661465519595755765526"
    },
    "payload": {
        "to": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
        "from": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
        "fee": "1000000000",
        "nonce": "1326",
        "memo": "Broadcast API",
        "validUntil": "4294967295"
    }
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    publicKey: 'B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7',
    signature: {
      field: '18272595141380250584469604897229002416332940517678367847162300084194223829287',
      scalar: '14023806555216748787769239497115189883629278190444711668661465519595755765526'
    },
    payload: {
      to: 'B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7',
      from: 'B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7',
      fee: '1000000000',
      nonce: '1326',
      memo: 'Broadcast API',
      validUntil: '4294967295'
    }
  })
};

fetch('https://api.minaexplorer.com/broadcast/delegation', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.minaexplorer.com/broadcast/delegation",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'publicKey' => 'B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7',
    'signature' => [
        'field' => '18272595141380250584469604897229002416332940517678367847162300084194223829287',
        'scalar' => '14023806555216748787769239497115189883629278190444711668661465519595755765526'
    ],
    'payload' => [
        'to' => 'B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7',
        'from' => 'B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7',
        'fee' => '1000000000',
        'nonce' => '1326',
        'memo' => 'Broadcast API',
        'validUntil' => '4294967295'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.minaexplorer.com/broadcast/delegation"

	payload := strings.NewReader("{\n  \"publicKey\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n  \"signature\": {\n    \"field\": \"18272595141380250584469604897229002416332940517678367847162300084194223829287\",\n    \"scalar\": \"14023806555216748787769239497115189883629278190444711668661465519595755765526\"\n  },\n  \"payload\": {\n    \"to\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n    \"from\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n    \"fee\": \"1000000000\",\n    \"nonce\": \"1326\",\n    \"memo\": \"Broadcast API\",\n    \"validUntil\": \"4294967295\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.minaexplorer.com/broadcast/delegation")
  .header("Content-Type", "application/json")
  .body("{\n  \"publicKey\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n  \"signature\": {\n    \"field\": \"18272595141380250584469604897229002416332940517678367847162300084194223829287\",\n    \"scalar\": \"14023806555216748787769239497115189883629278190444711668661465519595755765526\"\n  },\n  \"payload\": {\n    \"to\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n    \"from\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n    \"fee\": \"1000000000\",\n    \"nonce\": \"1326\",\n    \"memo\": \"Broadcast API\",\n    \"validUntil\": \"4294967295\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.minaexplorer.com/broadcast/delegation")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"publicKey\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n  \"signature\": {\n    \"field\": \"18272595141380250584469604897229002416332940517678367847162300084194223829287\",\n    \"scalar\": \"14023806555216748787769239497115189883629278190444711668661465519595755765526\"\n  },\n  \"payload\": {\n    \"to\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n    \"from\": \"B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7\",\n    \"fee\": \"1000000000\",\n    \"nonce\": \"1326\",\n    \"memo\": \"Broadcast API\",\n    \"validUntil\": \"4294967295\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "message": "Delegation broadcast sucessfully",
  "result": {
    "delegation": {
      "amount": "0",
      "fee": "1000000000",
      "feePayer": {
        "publicKey": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
        "token": "1"
      },
      "feeToken": "1",
      "from": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
      "fromAccount": {
        "publicKey": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
        "token": "1"
      },
      "hash": "CkpZA61vQ3Qfnh95NT3pDZEtS5sBZhhEQfdKbSEkj1kQN2kMQveqp",
      "id": "MVvtsE9mBNhZwuMWvq6EdFTzPkvPmAgNRa3FCuzAFBxcjjmbUt6idiBPJGoQ3nvH2X5rJSFK6YMUyLCnLhPvSeKa49yiBq91AKKNYy5jjMRGegJFTi2dzfxcGiL92Lfv8YR8p8oLZB8jrgD386vcmq8AXvCRqhvbAuaSMHMTkfBb2jk6pHsmMTioytjk96m4fa8WW8UpVXVK8bYh9MvG42CQLgh42r7gpcSVpesZMuEpqmH3h4QScnBnTxkNqdru56Vbm3NthBChb1StfgpYNe8CxgHftRvWoEKfq2ECDAFLDxWTq39UARbvk3mB57cXbcKQANcEfyy5FMPJRnUv28tK7sZqUtVHcMpHrpxHnqw9LbDrW33qb1jB2kFQvZ",
      "isDelegation": true,
      "kind": "STAKE_DELEGATION",
      "memo": "E4YxYSicMBEwDPtHBz4t7UQpbFKxL8yvrzYPM4Ee8U9uAWWX4Sa7v",
      "nonce": 1328,
      "receiver": {
        "publicKey": "B62qpge4uMq4Vv5Rvc8Gw9qSquUYd6xoW1pz7HQkMSHm6h1o7pvLPAN",
        "token": "1"
      },
      "source": {
        "publicKey": "B62qogU1qY33L8jwRmkwjN42xpSNrv8UkxaKrRFZxJSgbaNRMtpMTg7",
        "token": "1"
      },
      "to": "B62qpge4uMq4Vv5Rvc8Gw9qSquUYd6xoW1pz7HQkMSHm6h1o7pvLPAN",
      "token": "1",
      "toAccount": {
        "token": "1",
        "publicKey": "B62qpge4uMq4Vv5Rvc8Gw9qSquUYd6xoW1pz7HQkMSHm6h1o7pvLPAN"
      }
    }
  }
}

{
  "message": "Error in sending delegation",
  "error": "Query failed -- returned code 200. mutation($from:PublicKey!, $to:PublicKey!, $fee:UInt64!, $memo:String, $scalar:String, $field:String){ sendDelegation(input: { from:$from, to:$to, fee:$fee, memo:$memo, }, signature:{ scalar: $scalar, field: $field, }) { delegation { amount fee feePayer { publicKey token } feeToken from fromAccount { publicKey token } hash id isDelegation kind memo nonce receiver { publicKey token } source { publicKey token } to token toAccount { token publicKey } } } }"
}