INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6621de2de69cfd66c973f39e3c5960f76f8abb9b45b83b6fb8eeef21efe1cebb', 
    'qxgWzx2lnit7xNrHI55i2UlYxnzeQQr+FYgK3EGkvhw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)