json-ld example

example1.json

{
  "@context": "https://schema.org",
  "@type": "Person",
  "familyName": "Simpson"
}

example2.json

{
  "@context": "https://schema.org",
  "@type": "Movie",
  "name": "Jason Bourne",
  "url": "https://jasonbourne.com",
  "actor": {
    "@type": "Person",
    "name": "Matt Damon",
    "sameAs": "http://www.imdb.com/name/nm0000354/"
  },
  "director": {
    "@type": "Person",
    "name": "Paul Greengrass",
    "sameAs": "http://www.imdb.com/name/nm0339030/"
  },
  "image": {
    "@type": "ImageObject",
    "url": "https://t3.gstatic.com/images?q=tbn:ANd9GcQ27a64TqUZLOU1QbJiBPhu4mBZMW50wFzR62ob5W9o9Mgx7blK"
  }
}

explanation.md

https://moz.com/blog/json-ld-for-beginners

"@context": "https://schema.org"

Hey browser, this is the vocabulary that I'm referencing. You can find it at https://schema.org

Benefit for SEO: We get to use any of the item types and item properties that schema.org defines.

"@type": "Person"

Hey I am using the Person item type (You can find it at https://schema.org/Person)

"familyName": "Simpson"

"familyName" is the item property and "Simpson" is its value.

"familyName": ["Derulo", "Desrouleaux"]

"sameAs": ["https://twitter.com/jasonderulo", "https://facebook.com/jderulo"]

An item property can also have multiple values.