Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0805e28ad421c0c732b2c1f27204a9beee26207970676ad786eb135625b17605' 
  AND token = 'jrGacVkIQp5/Jjtxd+NQyyIQjm50qahHK7JxVycZvEM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00055

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}