{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x7f3d6ec5b7d9c93885974d1de60aa34d792a9c387d0327b5c9522ebc4dcdf163",
    "signature": "0x1ad551a461583df00ad47a508e4a275ed010cd16816d4616fc2f55fe0f8eb83124db746cd9b058c0b7be8977ea47ed59b45a88fd8292ddbdb506c4b5be09b1521c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}