Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e1795ebd1a859787619f240aa509cfeed4a226a9b3aaf61f1405bb51a83a8efa' 
  AND token = 'fUcIZHTxMuR+gQ1Ko3gGD+5UVCY97tjE4OixAViNzA8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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