Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eba733a83c65d1263da72a95495d32a8253d0a414bef8c8b64b5473932867aa9' 
  AND token = 'IhnFVoIWi6uarNw5ki+TjQ4A5mU6gpsV07Kra0Dr5FI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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