{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863746603",
    "entityType": "User",
    "nonce": "0x181e909bc5d44eadba924094922efb5527130a5973f483bfd45e8e72e6f31aa1",
    "signature": "0x113f94a8ff7e62aa104baa4b0c63a42089f5f7f147e9bd299f616f08b957222a5ca0d93df6dadfa2ba18a741f5baf78d467d418ebcc2f658a715a0d635e5120d1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}