Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '97de7a710ebdf6a01470122ddc220878978e12c406cddd2aecfd9ebd14568fdb' 
  AND token = 'HDaOyVRW/f6dWS89r6bbc0eHnviAK6hjBryYQe+KzzI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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