Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a7cd5cf3d6f75863d063b7e960476ebc3bd1516221bc467732cc1b9b92fd5321' 
  AND token = 'yqPgEpq3qRy0b5oN9ObWj1GEdc4rOwou8XgzO89psNs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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