Assign Agent to Number

curl --request POST \
  --url https://api.prod.usesimple.ai/api/v1/numbers/{uuid}/assign_agent \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "agent_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}'

{
  "message": "<string>"
}