Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'beedbabe48618d9dc2446dd082b2edd2b317a1a21913c0808aa30fe9ef0215bd' 
  AND token = 'KCHvc+VoXo1F9Uvf4yxPk0C55ikYpLK50Eug0cWh9io=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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