curl --request POST \
  --url https://api.example.com/changes \
  --header 'Content-Type: application/json' \
  --data '
{
  "params": {
    "block_id": 1,
    "account_ids": [
      "<string>"
    ]
  },
  "id": "dontcare",
  "jsonrpc": "2.0"
}
'

{
  "result": {
    "block_hash": "<string>",
    "changes": [
      {
        "change": {
          "account_id": "<string>",
          "amount": "<string>",
          "code_hash": "<string>",
          "locked": "<string>",
          "storage_usage": 1,
          "global_contract_account_id": "<string>",
          "global_contract_hash": "<string>",
          "storage_paid_at": 0
        },
        "cause": {}
      }
    ]
  },
  "id": "<string>",
  "jsonrpc": "<string>"
}