Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c63affcef304fb58a13ccdd979f1708117d93469f17008e800e592a92e11d620' 
  AND token = 's0+V/JUPT0KXAXx2/rQWsdYpKtwUm8RIUw6HFXnQ8f0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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