Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25cf6d2d13af151e68c75ac3a55425edcf24af7a70c11cffe4a91ae67543fa32' 
  AND token = 'ZsLppHMrM2Yi33z3ViKb2bqQ3z6iNrrLleXhHXqXfY8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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