{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2d43c6433a3f1c0d2f111e0616a86634a88327169ce1215358f2874bbbbd33ac",
    "signature": "0xf69cb5ec5eb8e040f6d947f17fa431667eedccf9aacb97152084b31c49bce1da598b51506e11995d5e4e84ab85ab8d732bdd8cc88b5590c073048e99470cd9271c",
    "signer": "0xFfEDC8a6177467Dd818D12079De6E66E514EeA03",
    "userId": "992110484"
  }
}