Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ce5223050a3da4486908685adc5da20081f71ce04535c0c9a6cc95bc116bfe29' 
  AND token = 'GEV8asgJFc4tqBBfdajE/oWduImbBVAl5dTXYc4FwqY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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