curl --request POST \
  --url https://api.example.com/v1/auth/cross_login/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "token": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'

{
  "token": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}