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

{
  "key": {
    "remoteJid": "559912345678@s.whatsapp.net",
    "fromMe": true,
    "id": "CBC2CDBAFA5C9"
  },
  "message": {
    "reactionMessage": {
      "key": {
        "remoteJid": "559912345678@s.whatsapp.net",
        "fromMe": true,
        "id": "CBC2CDBAFA5C9"
      },
      "text": "😁",
      "senderTimestampMs": "1720453008"
    }
  },
  "messageTimestamp": "1720453008",
  "status": "PENDING"
}