Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '382650f6ce5fe9254b350ca1b08a67f0ef9b8857f2994b497dcbca22a3b2b10f' 
  AND token = 'EfrkmseVqFXUNfLl6patlf7Qz37YMqsWKxOXib4ZejA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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