mutation UpdateFieldIdentifier($input: UpdateFieldIdentifierInput!) {
  updateFieldIdentifier(input: $input) {
    id
    fieldRef
    apiId
    generated
    publishedAt
  }
}

{
  "input": {
    "fieldRef": "string",
    "apiId": "string",
    "expectedApiId": "string"
  }
}

{
  "data": {
    "updateFieldIdentifier": {
      "id": "id",
      "fieldRef": "string",
      "apiId": "string",
      "generated": true,
      "publishedAt": "value"
    }
  }
}