Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32516086907cae3232980e56fe5b63366e73576a36e0c1862fcb7201ca41dd54' 
  AND token = '/Uqz+qPiEDP3RY3dmywL33X6ykwUkQvsWXaD88kD2FA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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