Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9a22168bbd6de3a27aae64c9ad171f3c68656ae175f019589281285f47018d27' 
  AND token = '+PJNYcxoI5L0Dfc2QiWM00l2/Vw0BeGocjzGQ0OByP0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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