curl --location '/channels' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"channelType": "whatsapp_cloud",
"name": "string",
"phoneNumber": "string",
"accessToken": "string"
}'{
"id": 0,
"channel_type": "whatsapp_cloud",
"name": "string",
"phone_number": "string",
"is_active": true,
"created_at": "2019-08-24T14:15:22.123Z"
}