Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95b65b3dabc40033fbada3e98e4dc1ed7e023e0937de23f40fae9aacf4c464ee' 
  AND token = 'J3A+vGvtcGFBZbXEURPLSJ7AD4Nj3ZnS382RbZLvwEw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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