very first hand at table. what do we do in this spot? guy is unknown and has a dumb name so probably bad.

PokerStars No-Limit Hold'em, $2.00 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

CO ($295.95)
Button ($196)
SB ($471)
Hero (BB) ($200)
UTG ($201.50)
UTG+1 ($225.35)
MP1 ($235.35)
MP2 ($311.70)

Preflop: Hero is BB with J, 7
6 folds, SB calls $1, Hero bets $8, SB calls $6

Flop: ($16) 8, 5, J (2 players)
SB checks, Hero bets $11.10, SB calls $11.10

Turn: ($38.20) 7 (2 players)
SB checks, Hero bets $28, SB raises to $70, Hero