INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '521a76d04ca3559d86c6eca1585550176c2b05c6bd7d14a5dfc392406d11449d', 
    'u1e3E7IodVOAebPX9jP4a21W0VMvkk+5/E3MJxiR2AM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)