{
  context: { clientId: '42', type: 'screen', contextId: '123' },
  threads: {
    '888': { commentIds: ['555','556'], createdOn: <date> },
    '999': { commentIds: ['222', '223'], createdOn: <date> },
  },
  metadata: {
    '888': { data: '{"some":"data"}', type: 'json' },
    '222': { data: 'some annotation', type: 'string' }
  },
  comments: {
    '555': { text: 'randall gets comments' },
    '222': { text: 'brian bench presses cars' }
  }
}