{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x78f5dfca97aadcd6789f5e7533eea6e28ca11715f30c5c974f378f09db3a6314",
    "signature": "0x92400dfeab3fea04cd083d6ca4e048972be56becdda3bd9e3f1b27f2be0eb34f71398436052595736472456eda5a504e7e2f56cb35a0dcc4c82638449668ecf41b",
    "signer": "0x71EcA59070046efd3FA56C34886D37c5f3ba20Bd",
    "userId": "566352394"
  }
}