Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '024ae903d806c09026b58d1ccd0478b5c76207886c616bd98b526ee8d119789b' 
  AND token = 'duuJUHb6VRqLNyc8JQ/Nz1xWOgLpncuorrsFc8gMlJE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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