curl --request POST \
  --url https://api.easierprop.com/api/accounts/{id}/symbols/batch \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "symbols": [
    "EURUSD",
    "GBPUSD",
    "USDJPY"
  ]
}
'

{
  "ok": true,
  "data": [
    {}
  ]
}