Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e385411d0332834eb7ab8f4184b9ea4cf460dbe5b0cd09918145d460f7dd8d38' 
  AND token = 'tBx2jieHUObScZkdEM6uB7STb6b5TCHdgO6wOSvCE8k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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