Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'db581787dd7fe72e588e570f491305398383b3558b34cb64167899da5efd1d5b' 
  AND token = 'cMOuCWihDk+HBGY6N3W8N4GTdsJY9EM/hzFfB6p06Ec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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