Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c9f0529c8ab183ecdde478ccc1a042532c44931b45c69ec378c19c4ec5944ca8' 
  AND token = 'HmG74+qXJ5xurjJSekjh6r2hk6QiwKNGr25b8fT2iFU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00140

JSON explain

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