Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7cfb9e67e87ed276a62852ce5826652d6adc67244168d256a2f54f020519d926' 
  AND token = 'mi/sSIpvHZcDNvQ64L9wSP2FLasFFXq5G5WHC8SmfI0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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