INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '50ee421cf8bb9292f697f0276d84f7ce8a5a886d630bd4008f8a0d2565516237', 
    '5bp5uvWTfAEWjb7Qoa2qtEbRDS2aA1QW1juGNvHK+B0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)