curl --request GET \
  --url https://payments.coinbase.com/api/v1/webhook-events/reward-operation/{operationId} \
  --header 'Authorization: <api-key>'

{
  "webhookEvents": [
    {
      "entity": "<string>",
      "id": "<string>",
      "paymentOperation": {
        "entity": "<string>",
        "id": "<string>",
        "transactionHash": "<string>",
        "params": {},
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z",
        "payment": {
          "entity": "<string>",
          "id": "<string>",
          "maxAmount": "<string>",
          "token": "<string>",
          "networkId": 123,
          "payer": "<string>",
          "signature": "<string>",
          "receiver": "<string>",
          "maxFeeBps": 123,
          "minFeeBps": 123,
          "feeReceiver": "<string>",
          "salt": "<string>",
          "paymentInfoHash": "<string>",
          "nonce": "<string>",
          "authorizationExpiry": "<string>",
          "preApprovalExpiry": "<string>",
          "refundExpiry": "<string>",
          "createdAt": "2023-11-07T05:31:56Z",
          "updatedAt": "2023-11-07T05:31:56Z",
          "operator": "<string>",
          "contractAddress": "<string>",
          "authorizedAmount": "<string>",
          "capturedAmount": "<string>",
          "voidedAmount": "<string>",
          "refundedAmount": "<string>",
          "chargedAmount": "<string>",
          "merchantId": "<string>"
        },
        "output": "<string>",
        "error": "<string>",
        "errorCode": "<string>",
        "revertReason": "<string>",
        "blockNumber": "<string>",
        "metadata": {}
      },
      "rewardOperation": {
        "id": "<string>",
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z",
        "reward": {
          "id": "<string>",
          "campaignAddress": "<string>",
          "paymentInfoHash": "<string>",
          "recipientAddress": "<string>",
          "tokenAddress": "<string>",
          "chainId": 123,
          "createdAt": "2023-11-07T05:31:56Z",
          "updatedAt": "2023-11-07T05:31:56Z"
        },
        "amount": "<string>",
        "transactionHash": "<string>",
        "error": "<string>",
        "errorCode": "<string>",
        "revertReason": "<string>",
        "blockNumber": "<string>"
      },
      "webhook": {
        "entity": "<string>",
        "id": "<string>",
        "operatorCoinbaseUserId": "<string>",
        "identifier": "<string>",
        "description": "<string>",
        "url": "<string>",
        "events": [],
        "secret": "<string>",
        "createdAt": "2023-11-07T05:31:56Z",
        "updatedAt": "2023-11-07T05:31:56Z"
      },
      "attempts": 123,
      "maxRetries": 123,
      "apiVersion": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "deliveredAt": "2023-11-07T05:31:56Z",
      "metadata": {}
    }
  ],
  "pagination": {
    "limit": 123,
    "next": "<string>"
  }
}