{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147794",
    "entityType": "User",
    "nonce": "0x4a070e5879414014a69cd271633f4d002bcc406fc43e24d2b91293f91e5d986c",
    "signature": "0x2146119a28c2177d33cef4048704c41ed95fe84471b314a82ddc50ec85f8da0c76cad06f21cefe1e8a431296b15fd0cddbb6bafa6cfeff5897219f0806fd67581b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}