curl --request POST \
  --url https://api.example.com/v1/uploads/customer/{customer_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "file_name": "<string>",
  "content": "aSDinaTvuI8gbWludGxpZnk=",
  "approval_needed": 123,
  "approval_made": 123,
  "signature_needed": 123,
  "signature_made": 123,
  "active": true,
  "metadata": {}
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "file_name": "<string>",
  "document_type": "<string>",
  "approval_needed": 123,
  "approval_made": 123,
  "signature_needed": 123,
  "signature_made": 123,
  "content_length": 123,
  "file_extension": "<string>",
  "active": true,
  "metadata": {},
  "created_at": "2023-11-07T05:31:56Z",
  "created_by": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}