SQSMessage
constructor(messageId: SQSMessageId, body: String, md5OfBody: String, receiptHandle: ReceiptHandle, attributes: List<MessageAttribute>)
constructor(@Json(name = "MessageId") messageId: SQSMessageId, @Json(name = "Body") body: String, @Json(name = "MD5OfBody") md5OfBody: String, @Json(name = "ReceiptHandle") receiptHandle: ReceiptHandle, @Json(name = "MessageAttributes") messageAttributes: Map<String, MessageFieldsDto> = emptyMap())