SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '79663a97b7c98ccee615411ea19c0dd8b6ab6a16ac3365eb28de3588cc7324cf' 
  AND token = 'uLjR2/CwBlkQ0gvErBEfn/K/C9kW9zgFQIkq7zyRmvU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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