Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1d1a2e75bc871ff9970918397d96766e3fe5666777c0dc7ef5e0f75f4fc672b9' 
  AND token = 'WkSoos4i+u70j9gAmUh3nRo3VGyrcrNPLq05Ug0hnco=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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