{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xd61ea835abccdd518058b551ab946c56d7f0fc4ebc98d4decb725cc70fbad47b",
    "signature": "0xeba785e890ad812d6d913de735bf9855e8e2b7da8c4ce946679fc92fff92a1b57bea87b4142b11eafc3ef5a571b5a5f0260c2e9a9bb68cbfdb87019d2c76527b1b",
    "signer": "0x54Bf4bCde33b2E24Cb1027FcC9d725FC4a7347ff",
    "userId": "138114417"
  }
}