SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c1ffceec7f284d4cd69613d78624d74cc1f4ffa78071316056f5d3a8d93a45b1' 
  AND token = 'jy+AxVGP1vEZypeZ9RFXpVjwxQrlMMtmGof9NUHsjCI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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