Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '062cecc286a20e45e5de0f8166c26b651648c374c2545716ccac3cc54fb47d73' 
  AND token = 'mRV5up6pbmTTUpITPPsIkm9grRr1ieI/RYqszlxny4Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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