Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'dfe0803e54cf7885b05099e56c8cdc3a3804bbac697e3156b565701fbc937bab' 
  AND token = 'qWyD/izN4gvOftQe3Xbyy05vqvYqjzR97Vc45aOIRhI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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