{
  "content": [
  ],
  "from": {
    "email": "someemail@gmail.com",
    "name": "Some Name"
  },
  "reply_to": {
    "email": "someemail@gmail.com",
    "name": "Some Name"
    },
  "personalizations": [{
    "to": [{
        "email": "someemail@gmail.com"
      },
      {
        "email": "someotheremail@gmail.com"
      }]
    }]
}

{
  "content": [
  ],
  "from": {
    "email": "someemail@gmail.com",
    "name": "Some Name"
  },
  "reply_to": {
    "email": "someemail@gmail.com",
    "name": "Some Name"
    },
  "personalizations": [{
    "to": [{
        "email": "someemail@gmail.com"
      },
      {
        "email": "someotheremail@gmail.com"
      }],
    "subject": "Some subject"
    }],
    "template_id": "someID"
}