Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e0da7644926ba08c690bfc79192248fe61a9a2beec1ac2353948065a7d7ccdce' 
  AND token = 'A0ordxO1gWzHR+W47mvmzWtDkINAfUXFFq+sdYikeYs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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