Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1abf0eb3dd23a918a0c7cadfb53b3731aaf38be9431f233344fcc185c539c006' 
  AND token = '8jxsEzhkwB3kr/myxCMVkEoupNlDzCqLTX9C2DmqmG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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