Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '653fe2c0c2865329d90a7d86d842ce5d0013ad2fb66b674826509d1dba052bf8' 
  AND token = 'zpD1jOTcv+I+O3kGYDe5zOHUaeycoq3ZOxBOfuuR9dA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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