{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16166",
    "entityType": "User",
    "nonce": "0xe6e37bc0f876353e1541c5c77ff5679258927951779da6def34df66a7a588ff9",
    "signature": "0x0c7dc2580555652237d75f413c2692d2c08e2bfdcfceb611b2fd3e2579558f1b470d5242e0250ad191f742081f3fae7cafa5d72353d2ecead5f8ceb878e847c21c",
    "signer": "0x03B2B16FC491BB9F7E9819D5186aF26a4DB298cE",
    "userId": "813481002"
  }
}