Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '009282b9c9ecba6e036d871bc33527d6d86cdbe4a31433db05633a9665f027bb' 
  AND token = 'k7OfJzv26ITYpFtbS3Oghye7rZZ6rs5ScdJe4vSYwCw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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