curl --request POST \
  --url https://production.runalloy.com/connectors/files/upload/request \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-api-version: <x-api-version>' \
  --data '{
  "filename": "document.pdf",
  "mimeType": "application/pdf",
  "md5": "2942bfabb3d05332b66eb128e0842cff"
}'

{
  "presignedUrl": {
    "md5": "KUK/q7PQUzK2brEo4IQs/w==",
    "presignedUrl": "https://alloy-user-files.s3.us-east-1.amazonaws.com/651eb6e11d156e0d7a42c59d_document.pdf",
    "type": "new",
    "s3Key": "651eb6e11d156e0d7a42c59d_document.pdf"
  }
}