Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9c736fd7facc6b969f00968174ca24a499d082a36a2482a315fef68184df3ba2' 
  AND token = 'MPAqB9GHsUshKCN+YP444ph832HLAmL7aCtbWKGp6fk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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