Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '24461b56d6234dd1ec0589dae9f891abe6e1263ee7b64d4a3bad9b8b81105277' 
  AND token = 'Uh7tVW01ND7XMxwcF4TNDG+Orrza27HY7SWtwZ+xQDY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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