{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2649f6da4417e19fe30547582342c71b60205353a8e9eccd604f2671c3c5b2e1",
    "signature": "0x0fb7c1036b214a3d858cfd23eddde1b569e1cc903af4924df9db8dcb9ea03f24722ad597d0cf8fe53fb9c0e0f6f1e7739af97d2c38fa051e45fb927b8345c1b61c",
    "signer": "0x129EEFaa5407B17830948f58a044f1C49da45015",
    "userId": "858675474"
  }
}