version 1 .

Attributes = {symbol: any ...:...} .

MIMEData = <mime @type symbol @data bytes> .

ContactSubscription = { contact: Attributes } .
ContactSubscriptions2 = [ContactSubscription ...] .
ContactSubscriptions1 = {
  contactSubscriptions: ContactSubscriptions2
  type: "contactSubSummary"
} .
ContactSubscriptions = { resp: ContactSubscriptions1 } .

NewChatItem1 = {
  chatInfo: Attributes
  chatItem: Attributes
  type: "newChatItem"
} .

NewChatItem = { resp: NewChatItem1 } .