Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '52be6ea5bbca0d74d9156abc977b749cf75c32d14e72b1e4f784e8eded06c842' 
  AND token = 'hio9gyZwyF/oE/B10n65ufcMzsGjFnrhVyzhbhHvjwM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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