fix(ws): reject tokens with NaN timestamps in verifyWsToken#168

0x-SquidSol wants to merge 1 commit intodcccrypto:maindcccrypto/percolator-api:mainfrom

0x-SquidSol:fix/ws-token-nan-timestamp-guard0x-SquidSol/percolator-api-squid:fix/ws-token-nan-timestamp-guardCopy head branch name to clipboard