Called method nft_supply_for_owner in contract 9.benj.testnet
Result:
{
"ActionError": {
"kind": {
"FunctionCallError": {
"ExecutionError": "Smart contract panicked: panicked at \'Failed to deserialize input from JSON.: Error(\"missing field `account_id`\", line: 1, column: 2)\', src/enumeration.rs:3:1"