Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7106e9c64e8bed1a7f188e0e793087ddd1c5339d94f2a06fedf7e115342850c6' 
  AND token = '179PXlC2TGKRo8jBlGd/4dBj52ZQwikylBDqo6XYNsM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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