curl --request POST \
  --url https://api.l2msg.com/whatsapp/message/sendReaction/{instance} \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --data '{
  "key": {
    "remoteJid": "<string>",
    "fromMe": true,
    "id": "<string>"
  },
  "reaction": "🚀"
}'

{
  "key": {
    "remoteJid": "553198296801@s.whatsapp.net",
    "fromMe": true,
    "id": "BAE569F0E38F858D"
  },
  "message": {
    "reactionMessage": {
      "key": {
        "remoteJid": "553198296801@s.whatsapp.net",
        "fromMe": true,
        "id": "BAE58DA6CBC941BC"
      },
      "text": "🚀",
      "senderTimestampMs": "1717781105034"
    }
  },
  "messageTimestamp": "1717781105",
  "status": "PENDING"
}