Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cc8ad99395bb7f03fe9c5c6f6774905aab3ab7ed002f6073df9c4e30d691d454' 
  AND token = 'DAy7kzQv3aYGHRevbZgF099z2jvW7ocL+fe0rirH310=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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