{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb7556cd6b368e8a70f9e587a62f247db82533701736d9f5d1c00accdbf27dd18",
    "signature": "0x9586fd568474d09ff895203390755599172569953e5e5635f93cbb92b3661b0010c35d53223d1badc1f24dad40be688dc213bceb8e0d1f6eabc6b5127c3265ce1b",
    "signer": "0x11299271edD14C34c7cdc941799259af9Ca54783",
    "userId": "46400348"
  }
}