Step Function Fan Out to Parallel workloads

I am trying to pass my output from my start execution to my next step. I am trying to get the key values from Step 1 output to step 2 as inputs. I have tried filtered the output from step 1 using $.Payload Using $.Payload I get the below.

"[{"AWSMASTERDT": "2024-03-05 14:44:00", "DATALOADCONFIGID": 1, "PROC": "info.usp_Load_F7", "TABLENAME": "info.F7", "FILENAME": "F7_202403051444.csv"}]"

In step 2 of my Step Function, I receive this input as $ and map successfully into my Execute Load function a successfully. My Step 1 could return up to 7 rows that will each need to be executed in parallel.

How do I set this up?

Current setup is below.