curl --request POST \
  --url https://payments.magicblock.app/v1/spl/deposit \
  --header 'Content-Type: application/json' \
  --data '
{
  "owner": "<string>",
  "amount": 2,
  "cluster": "<string>",
  "mint": "<string>",
  "validator": "<string>",
  "initIfMissing": true,
  "initVaultIfMissing": true
}
'

{
  "kind": "<string>",
  "transactionBase64": "<string>",
  "requiredSigners": [
    "<string>"
  ],
  "sendTo": "<string>",
  "recentBlockhash": "<string>",
  "lastValidBlockHeight": 123,
  "instructionCount": 123,
  "validator": "<string>"
}