{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xdb14124f1f5e305aa6ec93c76a6ea23badee70ce9d781b44d9f01f6a07b3e4ba",
    "signature": "0x2d42775274b4c8d9957840c711792f3242ba3dcf2c4c3c26e123ba756d354ac9605f36af182d27c5a1fe74b559ea0a316717cf430556193a9e4364c0709efa8d1b",
    "signer": "0x4Ff77Da6D5C7286ea15F7F94FdCC04a641dE9a27",
    "userId": "512734349"
  }
}