INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15d8a2ee996ea8beb5d4836abe8268f312e898da806ebabb6e5672ff4c03da9a', 
    '3eHiQxeVk6FPWUfVL6ZM2htu9651Eg3Lv0nxSHvU98Y=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)