Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67365777dec897c7079551304b46a2091744505dcb15cc0b97bac651cab8c21e' 
  AND token = 'rYWfoxWuRWjkuc+Bf2DT4HJI1Q6b35pcd8mSWR+++fE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}