messages
{
  "messages": [
    {
      "content": "Welcome to the project channel!",
      "receivers": [
        "2"
      ]
    },
    {
      "content": "Thanks! Excited to get started.",
      "receivers": [
        "1"
      ]
    },
    {
      "content": "Hey, let us discuss the API documentation.",
      "receivers": [
        "3"
      ]
    },
    {
      "content": "Sure, I will start drafting it today.",
      "receivers": [
        "2"
      ]
    },
    {
      "content": "Team announcement: Sprint review tomorrow at 2pm.",
      "receivers": [
        "2",
        "3",
        "4"
      ]
    }
  ]
}