Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '62dc04353d8e91ae6a3f03e0266115ab020c161877cd09f3a098355ffd71a171' 
  AND token = 'PH0uVldeHAOk03GfzBScJM3eTrsqldXwtmirMhefpaI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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