How do I search contacts by account parameters (EntityId) (C# API v2)

How do I search contacts by account parameters (EntityId) (C# API v2)

Hi,
I can't GET Contacts for a specific Account.

We have this :
ZCRMModule module= ZCRMModule.GetInstance("Contacts");
BulkAPIResponse<ZCRMRecord> response = module.SearchByCriteria("(Full_Name:equals:FULL NAME)");

But i need as Account information (example)
"Account_Name": {"name":"Patricia""EntityId":"425248000000104003"}

I don't know how to build the condition?