Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aeb0b442f509885b4150323741ba6a116950761ff16739aa580bbd5d5cec36a0' 
  AND token = 'YefvDxZIfeQSYJ3k+B7zAF/fr8977+LWCQOXtdIza+0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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