curl --request POST \
--url https://api.usecobalt.com/v1/messages \
--header 'Content-Type: application/json' \
--header 'access_token: <api-key>' \
--header 'client_id: <api-key>' \
--header 'client_secret: <api-key>' \
--data '
{
"provider": "<string>",
"subject": "<string>",
"message": "<string>"
}
'