{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0x17cda7b4107e00032f9bb8ea4cd71881f86b0716953b340228508d21cf340645",
    "signature": "0x7a32d9e652742cf6463e2e85e602d97f8e681fc41269702c884200c8549f562b73d80e9cad2c67352d511226aaab41a52f5d3f0f026c1fb7b48de89dcbe53df71c",
    "signer": "0x9f5896C078219d89B9A5D8B9C381b7be8BEf4CFA",
    "userId": "56704236"
  }
}