Copy from (https://github.com/erikpoort/react-native-wallet/) that works on React Native 0.61.
To install: yarn add https://github.com/dusiromulo/react-native-wallet#1.0.6
Insert on podfile: pod 'react-native-wallet', :podspec => '../node_modules/react-native-wallet/react-native-wallet.podspec'
After: pod install