{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x56fb36eb1d417ec743e1fd4f54584d4c5ea2f2fd2f922e1ae9c829c7bf22c5b5",
    "signature": "0x34f46dca503b39379425681179de513497cd274659662357b80191c5ebf30f9f5b877528e2f9bf66f6cf3c27d4b7108c39b24ab7b8028d4d26cd870dbec6ad311c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}