const data = {
  id: 1
  content: {
    title: 'hello'
  }
}

if (data.content)
  data.content.body || 'world'

import couldbe from 'couldbe'

couldbe(data)('content')('title')         === 'hello'
couldbe(data)('content')('body', 'world') === 'world'