Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '559da4b6b694c3a57f606690bcd61a699d078421d18cc2db78fa053c968e24ae' 
  AND token = 'pnfQwp0n7x8F9rVKEEIEzRE/1nfhrLxMSSu2icmbjXU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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