schema.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "a": {
      "items": {
        "type": "integer"
      },
      "type": "array"
    },
    "b": {
      "items": {
        "minimum": 0,
        "type": "integer"
      },
      "type": "array"
    },
    "c": {
      "items": {
        "minimum": 0,
        "type": "integer"
      },
      "type": "array"
    },
    "d": {
      "items": {
        "type": "integer"
      },
      "type": "array"
    },
    "emails": {
      "items": {
        "type": "string",
        "format": "email"
      },
      "type": "array"
    },
    "emails2": {
      "items": {
        "type": "string",
        "format": "email"
      },
      "type": "array"
    }
  },
  "required": [
    "a",
    "b",
    "c",
    "d",
    "emails",
    "emails2"
  ],
  "type": "object"
}