Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd467dd1280b338e72a64fa79e4517c44cedf3500f865900a8c7f65554b75c3ea' 
  AND token = 'LGIIpXhniGmYRO8/Di7OFki2T24Nf+KkDqIRY9Xn7LE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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