Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6a096443f934ca71623db8b3c43d7a27afb54c331b34c2809029af6dc350a54b' 
  AND token = 'Sgx0eDohtoYFBAsg7RIuesuP++aoCsKKrVvyF/WpVFc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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