Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0110a58c6d919a24a35458899d913384f71d715e9bf69319e891f80ca830d92b' 
  AND token = 'l2nzPfYKOco975Te0/kQmqbU3HQsoxDrmb4uba/hzjo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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