[
  {
    "uniqueId": "string",
    "payrollCode": "string",
    "amount": 0.0,
    "hours": 0.0,
    "days": 0.0,
    "percentage": 0.0,
    "payCode": "string",
    "description": "string",
    "effectiveFrom": "2026-04-04",
    "effectiveTo": "2026-04-04",
    "isNetToGross": true,
    "department": "string",
    "costCentre": "string",
    "isAutomaticBackPay": true,
    "isAlreadyPaid": true,
    "contributesToBasicPay": true,
    "proRataAdjustments": true,
    "roleReference": "string",
    "paySpine": "string",
    "payGrade": "string",
    "spinalPoint": "string",
    "londonAllowance": "Inner",
    "treatAsWhenPaid": true
  }
]