Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08130468290f0bed2ed3620244b55e06553bf150e007000b32b16dc97f1d8d96' 
  AND token = 'WzzQEcRzO8jmyOK2aeokb92HJfSsgmvsWq0joheNG90=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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