Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '17f4b44e77f48a83dd3d758096b1d530db450b6e294eeff4657a2d619f30d1c5' 
  AND token = 'qIegUdDCDVRWqtJngW7EaDPagGltjdi3KBQ/159E4Gg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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