Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0d2677d8b8ac07b7ff37705a7517e6ea4872938127291b2fb18febd18b9d7494' 
  AND token = 'PUZh/ktBEIWBQnf+bQn37Iimbz7ETeW+ojWV+Arkwd4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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