Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea33377f3e6e65424a5ae766e383379fdce3d79fcb4af36fa74976a15fbedd85' 
  AND token = 'Szh/DGiZPoYmzRiaoJGFJ9frQnyrV3qcJcP70IsTf/M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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