Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '40db0ed34006d128252bc5139e8a803450120c20d6c71ac2ad406fa1d08dce19' 
  AND token = '02O2Ezgg+E9MT9Wf3KJXZDP7NlG79QICTZNORq0t+Hk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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