SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5727e38d4e6d403a43771f7d2009b8b113db3525005cc0214483b812a9ce6ab3' 
  AND token = 'ZPkh9Ky6ERXgGXpETZgylBFcZEFqHVVU6ajmdTxkeZg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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