Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7b19de8f87bb66a0ea6a13c46b1ce9afe3270760b9ed01ebb022b809c3bfe5b1' 
  AND token = '644V+m3KOX97Qed32xhWJC8JvJIGp9KwduJJyGe0eyE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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