Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7158ca5b1e288737b8feaea5f0780cf1f5fbe5ed67848926393a5a9f48f83e31' 
  AND token = 'ZpucmxWb+N2o0+c2IjQgbxS00/zbJ0nkY5235ahx6AM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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