I have some issues with my blockchain dot com wallet (as can be read here https://bitcointalk.org/index.php?topic=5303820.0) and the best advice I got was to open an Electrum wallet and import my old wallet into it.
I have the recovery phrase and the wallet.json file which has priv key and priv_sipa key.
My wallet is pretty old and uses 17 words recovery phrase, not 12 words. Can it be imported to Electrum? If so, where can I find a detailed step-by-step guide for the procedure?