SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1e5e787be9c4cea2c212fcb0052e5f1e716ad67e4bc165e207a6d0ff905dbc95' 
  AND token = 'wO8J49RCBdnR13vPHZiYqYNcEUYVEU+/mIVrigMcjG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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