Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aeca5e32630943f023e60f36639a4845e0db400b7b58bc8269ed418a8eff549a' 
  AND token = 'v1APzfc5vUt0ttvXAC99p7VYIgZXIaB3BmXuRxLHViY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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