SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '95872deb8fa97d5ea640f0079d1c8c19b9041c1a76c82eebb8bbc6258c181cbb' 
  AND token = 'iJBMvzVRn8J8+0gdji/F+I7rshhsXy3FXu9ymptq8mw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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