Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3814d83d13784472dc04dc52bbdc4ab0bd4e6922f2baf0f180544e415f20887d' 
  AND token = 'XWBh3E7UOqGpEHhmxZKEhWuoSoGyK8YCiEdDBW8E808=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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