Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7dfc9b00d183c6a88a22853ef42886dc604db7bcc574657e7cf25988754110d8' 
  AND token = 'zbeeis+88TwHJhNYZqSW9BI7ZgmLwe2Y9yr6MTVU3kc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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