{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe55613b2d2b60252b25fcea38f20afafbbdabd6c9d23aa50d931866b24e42a1c",
    "signature": "0xccd127075b1b7f17253692893c6b7651a9e74748321371627bdcc6f55107e03b15e9474e6ed2f77495417c69600e5b49fe0cedf5a1f8e04adf3ca1c075d738791c",
    "signer": "0x50009A0960C710bc14D25B3365688CCcF334B5cd",
    "userId": "526990907"
  }
}