Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c9cd761d3149f72eed9330cd0ab4442af002401b8479ad8cbcafe7298570fb7' 
  AND token = 'hJ8D8yZjeBOo49HVRTXrEyoIRX4v//szo0VA16lJkL0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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