INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a1621ee6386d0653513ba1248ea5c255c508239c56f7d9be3bac81729d28003d', 
    'S5u2tN/YZ3EhwozhxsmlhEGTZgUltbjeVlp3LoLbfPI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00063

Result

int(1)