Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cca7a3b1392e55639527d80bf4fa6f58f296853809ed3309542667776655e8e8' 
  AND token = '/oxSS9doRShbEe/MbPwE5X26rKRfQpc5od3dyn4ZTaQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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