Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a559840115504d10941efd8b8320d62949b3a0abd5fceb5b055ad46e9ebae8df' 
  AND token = 'USYmGRlARV7lHSA/3mjQv/9Z3/wP+MlqoSQHE7GA3fk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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