{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2083ceb81944b08b271ebcaf165b53469d7e2faecf6d69b20b93441aa7f51de",
    "signature": "0x162d7989cc727055e711114c56e97d539ad700f20a0213d7beb5a2dbc955eeb0541c3077547781ef8fe5cf1ac22e8095b256e92cfc83faeec4962c00eb4e5b071b",
    "signer": "0xADdEa4e8c5E692F712b0C751936884dAe1F6f788",
    "userId": "280479212"
  }
}