SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '622f402f9f39ebe4d7aea560442b8e05e1633b65ecd036b6244f04f2af06813c' 
  AND token = 'FIopCj1OlUekY1DRCFuUtaA/U3TMvKcA5o8hGjklJ+g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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