Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '34f153b007959b3aa10688f36a54eb304c42325afe3eb088b2b27372b2182bb2' 
  AND token = 'GpnDH+pdR7ohRrcpE8PH3OcYvh4f59HzfkS3l4rrqIE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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