{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc994f761e032d7df6952d594f9f0df219f4db94e05e8bc29e3760c97685d33e5",
    "signature": "0x1030d2a80c09ea25d705741f1048ca70b17ff6514b1a486eab7b68c0ec2c26d24e99a99e6f4afcd45ae15600b99853cc99b2692e13126afa239d10554a9fc8a61b",
    "signer": "0x59067832E6C6450Ccd1f2C49a71835104B5F4B1d",
    "userId": "578511921"
  }
}