Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7414bb688708ad1a8d8cf6d06878ceb47a87b76518544b292818bf2ca2742181' 
  AND token = '5mXNtMK/CWKxo5nj4YYaCBAgxCEP3eKNJb2Sd6gHWzk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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