Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fc0460824e1da3d11edc77a2067fe65691ba3f17e9dc53927ac42c07dfc6888b' 
  AND token = 'DVLEEbyW9m78hsQT9yCQRvJssLjp6p6euQolctG2Tiw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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