Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '822755fea313b3ba56dd145cdbd9149200857edde77e4ba936eaebc310bbdd9f' 
  AND token = 'HuDEKjq/zUiElEzZ/TUx9XnKT1MtH5ni7zMFUAutsnc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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