Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '776bfc8fdfec35b0456f88154c181af1cf51eb29adb795164d2c872838ef7aac' 
  AND token = 'rCoCqTXxbgv4K3iBlIUMIm0rzAgrIyoMN9j+tFoFkQw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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