SmartPush with Groovy failed and very slow. Error Threshold: 500000

Hello experts, I have a form with moreless 400 rows, and user should inform these 400 rows with different values.

in Rows I have four dimensions with different combinations (Entity,Account,CEBE,Platform).

I did a groovy to limit smartpush just for data that is modified in the form, but my problem is that if I modified data for 400 rows I think that smartpush try to send all the possible combinations for these 400 rows and I would like to send this unique intersection.

This is my code:

if(operation.grid.hasSmartPush("OPEX") && lstAccounts)
operation.grid.getSmartPush("OPEX").execute(["Entity":strEntity,"Account":strAccounts,"CEBE":strCEBEs,"Platform":strPlatform])