SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '70b4fbba874d95413326dedf1361e3678fcf135b8f48ca8dff49d0917a6238fc' 
  AND token = 'aaRxN+3j1/ei+7qBPHnCZdZQCqzYjCH5fQ2eMurfMF0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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