SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '95a9d32a65f4d1394087c927cd72e8c44b1e8cf320305412d7dce779d75366bf' 
  AND token = 'Prrc7rHISY4VsGu6U+K5YbCvRizRTo/uwMALneA1XR4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}