Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d8d64fe5369e897919cf9e7d09406b26b7bb6116d9bb8fdb3925ebb8e1acaf4' 
  AND token = '6S634HpnlIJzOeNg3GDaGcMrn+WzrpaLIfEfd8WuDfw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00131

JSON explain

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