fetchChannelMembersInfo

type Member struct {
	UserId          int
	ChannelId       int
	UserExternalId  int
	JoinChannelDate string
	Username        string
	FirstName       string
	LastName        string
	PhoneNumber     string
	Type            string
	Bio             string
	PhotoList       []string
}

type MemberInfoList struct {
	MemberList        map[int]Member
	ChannelExternalId int
	ChannelId         int
}