Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'faf432add908e1f16adeda53dd575d9914bf82e320ae8e808c90fda7aa2309d4' 
  AND token = 'Iga9AgFhzNX4FKUbnIUKae6MsXdvqE945ilAc7RC+0M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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