SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60106a1997fc91a88f8abae97579f38edd99b4f45f26e4c034a8cb355058463a' 
  AND token = 'bhxnKGc/xnbHrgQnES6DB+rQy2jzzvPRkKfY5F58HzQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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