curl --request GET \
  --url https://grid.squads.xyz/api/grid/v1/passkeys/account/{passkey_account_address} \
  --header 'Authorization: Bearer <token>' \
  --header 'x-grid-environment: <x-grid-environment>'

{
  "pubkey": "<string>",
  "relyingPartyId": "<string>",
  "sessionKey": "<unknown>"
}