Fix event data type inconsistency between LocalBlockchain and Mina #5043

Job	Run time
Prepare	1m 48s
Build-And-Test-Web	5m 10s
Run unit tests parallel (1)	53s
Build-And-Test-Server (Simple integration tests)	5m 55s
Run unit tests parallel (2)	5m 50s
Check-mina-commit	10s
Build-And-Test-Server (Reducer integration tests)	5m 54s
Run unit tests parallel (3)	4m 58s
Build-And-Test-Server (DEX integration tests)	5m 53s
Run unit tests parallel (4)	5m 53s
Run unit tests parallel (5)	5m 53s
Build-And-Test-Server (DEX integration test with proofs)	5m 52s
Build-And-Test-Server (Voting integration tests)	3m 54s
Run unit tests parallel (6)	5m 52s
Build-And-Test-Server (Verification Key Regression Check 1)	5m 53s
Run unit tests parallel (7)	5m 52s
Build-And-Test-Server (Verification Key Regression Check 2)	5m 54s
Run unit tests parallel (8)	2m 23s
Build-And-Test-Server (CommonJS test)	1m 27s
Build-And-Test-Server (Unit tests)	1s
Release-on-NPM	1s
Release-mina-signer-on-NPM	1s
	1h 25m 27s

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