Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01ad1f70b2584dee35585057e1a7d9f3a4718da3dca5ad2c590953329747e895' 
  AND token = 'JuZsS5dJ5NtFpE/7sstsH5v7rDTl0evdH8todEstBVY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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