{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54299",
    "entityType": "User",
    "nonce": "0x8311608185e3d16950b5824db9d7dfb7140deb874904d4780ab291117c5e5685",
    "signature": "0x6644a7e015c15f8d91313a8a1d5a3ce0ff2d107af2591679244b17c6b464b1fe073b70bdb2e1ab57c26c1723b5d43110d94d058e848312b311d78185bb00118d1c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}