state = {
  threads:{
    '1':{
      id: '1',
      name: 'code',
      isActive: true,
      tweets: ['1', '2', '3']
    },
    '2':{
      id: '2',
      name: 'sport',
      isActive: false,
      tweets: ['4', '5', '6']
    }
  },
  tweets: {
    byId: {
      '1': {
        id: '1',
        title: '...',
        description: '...',
        isEditable: false,
        authorId: '...',
        comments: ['1', '3', '4', '7']
      },
      '2':  {
        id: '2',
        title: '...',
        description: '...',
        isEditable: false,
        authorId: '...',
        comments:['2','6']
      },
      '3':  {
        id: '3',
        title: '...',
        description: '...',
        isEditable: false,
        authorId: '...',
        comments: ['5','8','9','10']
      }, ...
    },
    allIds: ['1', '2', '3', ...]
  },
  comments: {
    byId: {
      '1': {
        id: '1',
        description: '...',
        isEditable: false,
        authorId: '...',
        tweetId:'1',
      },
      '2': {
        id: '2',
        description: '...',
        isEditable: false,
        authorId: '...',
        tweetId:'2',
      },
      '3': {
        id: '1',
        description: '...',
        isEditable: false,
        authorId: '...',
        tweetId:'1',
      }, ...
    },
    allIds:['1', '2', '3', '4', '5', ...]
  }
}