SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ef37d051ab8df750d64e48826569cf7d71702631b76dbf452fae52908de0ee65' 
  AND token = 'Y3g9m1hVm9ODMjvvEPG/BkhXZCMoXX+ABgFzWkFwS+w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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