Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22067b291052c7a45e5886ff6f6f861050bd81e7d67cf646757c2e02ed3ab49c' 
  AND token = 'FFXeBl8pwbk2ucL2inNKsJ6ADTCzI+XD8zz1weTHOEI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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