Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '601d041a30662a574ea11f6fcb003acdb448fa7be854f0799fc49523eb58cec5' 
  AND token = '/S6A8Zlx4D2rS9jqr6B4+u56+472qi590AZ8FoBoPAQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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