Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e43c0374813814179a7161b72947fc8b501dcae835e514014ff00bf7b762cb49' 
  AND token = 'nEPTDvCRM1NC0tjA1pOTe+QQVeFTaeIsdlx1Gmmhfpw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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