{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "899586058",
    "entityType": "User",
    "nonce": "0xfac28da5e0e11384ae62fc0cfb5096cd3e6da73671d9227bee4be6f31baf3faa",
    "signature": "0x0acabe0f8cdea95d65b3893c67f619173a1deb39ae18aa46cf788dbe43c3b52e11c09b634597b46b7bec7f9244d321109ea9c7683503761ee384dfeae0a235d81b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}