Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '690f07e70ab29b1fc41303af8513ffcd4111dc59064b20fd6f56545a00f9b8f7' 
  AND token = 'HmYwMa9n6EJGs0tpabnVVHY32sazqcJ2pVSE9XVh/iQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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