{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "454971",
    "entityType": "User",
    "nonce": "0x2c5257d2cb8560d9f65a95eadece52a64c5d5bb004acacca63198ceccdaa8f38",
    "signature": "0x785fc050917df0658130a51ddf787233893574aefcf2db04687f0441986892d43fd498b8bd03e1f5f0fe056b1d7074ff1c962ca292a900b53f4745adcf0d22021c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}