Fix for nomination transfer parsing error

[bobo-k2]

There are two different argStr layouts for this event. This PR handles both cases

        nomination_transfer [
         'Evm',
         '0xa782e40252e557d9e270650243546dbcd879d995',
         'Wasm',
         '0xf7e6c934de84a404947bcef7387d33a2c941e6eab20b1193034414c7242f3011',
         '4767259000000000000000'
        ]
        and
        nomination_transfer [
         'Evm',
         '0x50a64d05bb8618d8d96a83cbbb12b3044ec3489a',
         '0x7bae21fb8408d534adfefcb46371c3576a1d5717',
         '500000000000000000000'
        ]

[github-actions]

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