AWS SES Integration issue

{
  "name": "SignatureDoesNotMatch",
  "$fault": "client",
  "$metadata": {
    "httpStatusCode": 403,
    "attempts": 1,
    "totalRetryDelay": 0
  },
  "Type": "Sender",
  "Code": "SignatureDoesNotMatch",
  "message": "The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details."
}

{
  "name": "SignatureDoesNotMatch",
  "$fault": "client",
  "$metadata": {
    "httpStatusCode": 403,
    "attempts": 1,
    "totalRetryDelay": 0
  },
  "Type": "Sender",
  "Code": "SignatureDoesNotMatch",
  "message": "The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details."
}