{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x18b658d59536245fc4e6f3446e34bb72c3ee7d93740fe94f5c9c883c9f1c4416",
    "signature": "0xfbd81424ffcca9c4f4227a1ee806ae49d5da3397daf36a84f4e4ff07aca59a2e137a6995e8716abb6d3a4de048bbd7f5be810f33206ac62c6371b44eb7bd7ee61c",
    "signer": "0x1e9F846fdf1a89ba11e2D67fb4831B7E14ae8940",
    "userId": "617992566"
  }
}