curl --request PATCH \
  --url https://api-sandbox.y.uno/v1/banking/entities/{entity_id}/onboardings/{onboarding_id} \
  --header 'Content-Type: application/json' \
  --header 'private-secret-key: <api-key>' \
  --header 'public-api-key: <api-key>' \
  --data '
{
  "account_id": "550e8400-e29b-41d4-a716-446655440000",
  "compliance_declaration": {
    "terms_of_service": {
      "accepted": true,
      "version": "1.2.0",
      "accepted_at": "2026-02-01T10:05:00Z",
      "accepted_ip": "192.168.1.1"
    },
    "privacy_policy": {
      "accepted": true,
      "version": "2.1.0",
      "accepted_at": "2026-02-01T10:05:00Z",
      "accepted_ip": "192.168.1.1"
    }
  },
  "risk_assessment": {
    "assessed_at": "2026-02-01T10:05:00Z",
    "pep_status": {
      "is_pep": false,
      "pep_level": null,
      "position": null,
      "country": null
    },
    "rca_status": {
      "risk_level": "LOW",
      "classified_at": "2026-02-01T10:05:00Z",
      "assessed_by": "Merchant Compliance Team"
    },
    "sanctions_screening": {
      "appears_on_sanctions_list": false,
      "sanctions_list_name": null,
      "screened_at": "2026-02-01T09:00:00Z"
    }
  },
  "source_of_funds": {
    "primary_source": "EMPLOYMENT_SALARY",
    "secondary_sources": [
      "INVESTMENTS"
    ],
    "description": "Primary income from full-time employment, supplemented by investment portfolio",
    "estimated_annual_income": {
      "amount": 175000,
      "currency": "USD"
    }
  },
  "documentation": [
    {
      "type": "BANK_STATEMENT",
      "bank_statement": {
        "bank_name": "Chase Bank",
        "account_number_last_4": "1234",
        "statement_period_start": "2025-12-01",
        "statement_period_end": "2025-12-31",
        "file": {
          "file_name": "bank_statement_dec_2025.pdf",
          "content_type": "application/pdf",
          "content": "base64_encoded_content"
        }
      }
    },
    {
      "type": "IDENTITY_DOCUMENT",
      "identity_document": {
        "subtype": "PASSPORT",
        "document_number": "X12345678",
        "issuing_country": "US",
        "issued_at": "2020-01-15",
        "expires_at": "2030-01-15",
        "front_image": {
          "file_name": "passport_front.jpg",
          "content_type": "image/jpeg",
          "content": "base64_encoded_content"
        }
      }
    }
  ]
}
'

{
  "id": "onb_990e8400-e29b-41d4-a716-446655440000",
  "entity_id": "ent_660e8400-e29b-41d4-a716-446655440000",
  "status": "PENDING",
  "provider_status": "verification_pending",
  "requirements": [],
  "updated_at": "2026-02-01T10:05:00Z"
}