Create a message

curl --request POST \
  --url https://api-staging.respondent.io/v1/messaging/conversations/{conversationUid}/messages \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <x-api-key>' \
  --header 'x-api-secret: <x-api-secret>' \
  --data '{
  "body": "<string>"
}'

{
  "createdAt": "<string>",
  "updatedAt": "<string>",
  "uid": "<string>",
  "body": "<string>",
  "conversation": {
    "createdAt": "<string>",
    "updatedAt": "<string>",
    "uid": "<string>",
    "name": "<string>",
    "deleted": true,
    "locked": true,
    "read": true,
    "metadata": {
      "projectId": "<string>",
      "surveyResponseId": "<string>",
      "externalResearcherId": "<string>",
      "externalTeamId": "<string>",
      "externalCompanyId": "<string>"
    },
    "participants": [
      {
        "uid": "<string>",
        "foreignId": "<string>",
        "firstName": "<string>",
        "lastName": "<string>",
        "read": true,
        "deleted": true
      }
    ]
  },
  "sender": {
    "uid": "<string>",
    "foreignId": "<string>",
    "firstName": "<string>",
    "lastName": "<string>"
  }
}