INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b6a5c4c11c10abafff58948bcaf9d5515d5f49c470a40bdb6fe38b8b1ae22848', 
    'U29zZqloBFkidJo5icp4GiZlEyFJZcl18RyDvBAvU7s=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)