string(462) "{
  "personalizations": [
    {
      "to": [
        {
          "email": "fong@theblueocean.ai",
          "name": "name"
        }
      ],
    },
  ],
  "from": {
    "email": "support@dearc.ai",
    "name": "dearc"
  },
  "reply_to": {
    "email": "support@dearc.ai",
    "name": "Example Customer Service Team"
  },
  "subject": "subject",
  "content": [
    {
      "type": "text/html",
      "value": "test message"
    }
  ]
}"
string(0) ""
nnnaaa