Amazon Pay Edit Extension wants a JSON KEY, what is it?

I could find nothing describing what the Amazon Pay json key should be on Google, does anybody know where I should go, or have what is needed if this is somewhat generic?

Thank You!

leemcgee Mount Aukum California lee.mcgee@usa.net

Can anybody help, I feel unable to set up Amazon Pay without this knowledge. Thank you Lee

I had tried to enter the JSON key as:

{
"merchant_id":"AQ8EXXXX3223Q",
"access_key":"AKIAJYPXXXXOHYPGC3RA",
"secret_key":"8UiXXXXXXXXXXXXXXXXXIf8UBxsVexlR",
"client_id":"amzn1.application-oa2-cXXXXXXXXXXX643ebe6e86",
"client_secret":"d805d57d0e376ecba3799958a8e1cXXXXXX1c2673c217a"
}

But this did not work at all in Opencart admin "Edit", it just failed and returned me to where I was when I said "Validate".

I definitely need some opencart help here please! Lee