test: covering Contract API and Logs API endpoints #175

Job	Run time
API test set: accounts.test.ts / Node: lts/*	12m 54s
API test set: addresses.test.ts / Node: lts/*	13m 36s
API test set: batches.test.ts / Node: lts/*	12m 48s
API test set: blocks.test.ts / Node: lts/*	12m 29s
API test set: contracts.test.ts / Node: lts/*	12m 38s
API test set: logs.test.ts / Node: lts/*	12m 38s
API test set: stats.test.ts / Node: lts/*	12m 50s
API test set: tokens.test.ts / Node: lts/*	12m 26s
API test set: transactions.test.ts / Node: lts/*	14m 35s
	1h 56m 54s

Provide feedback