Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8599a43914a3a20520b46813ccb16985384cdf94d6013f3b7919401b24f43147' 
  AND token = 'zh71bmKFBkg0AsNSt3lxbax3s9MK6SlbKIUcnyqhKEc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

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