Sponsor a Solana transaction via Grid API

curl --request POST \
  --url https://app.dynamicauth.com/api/v0/sdk/{environmentId}/solana/sponsorTransaction \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "transaction": "<string>"
}
'

{
  "transaction": "<string>"
}