Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd0a1046769e7d5c1746afad4076a12ca807946d570dffb1ef5288de0c009bf2b' 
  AND token = 'Gkc+CHgpb8mmEHm9862yGfHhoPrVbi7ySsc7XfnQgn8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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