Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '665e3b5237058300986ab062578a3008065f24ccd7d33fec9bf0e1464ec1e960' 
  AND token = 'f3Kd0z+gXHbcWOmPiGufuMmJTC9GASvkU2xmQrDbeEs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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