Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '113966d30e39be455ca5ced3e5443d937a76ed5fe047998c41b1f1bbe8807757' 
  AND token = '06cX1JyMms5+fBuJ31Cg3rb1dJhKs30rqZiO5SuDjdc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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