Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '45211453182622b1807b1f943dbbea9e3c8ab566cd77de423f6ed0d7717dfe01' 
  AND token = '30jMYJyiDqrc4Hnmt0b6S6yWxqPuk+kCEfOM4ogM0dg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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