Raw sign

curl --request POST \
  --url https://api.privy.io/v1/wallets/{wallet_id}/raw_sign \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'privy-app-id: <privy-app-id>' \
  --data '{
  "params": {
    "hash": "0x0775aeed9c9ce6e0fbc4db25c5e4e6368029651c905c286f813126a09025a21e"
  }
}'

{
  "data": {
    "signature": "0x0775aeed9c9ce6e0fbc4db25c5e4e6368029651c905c286f813126a09025a21e",
    "encoding": "hex"
  }
}