{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "448258374",
    "entityType": "User",
    "nonce": "0x94d16d52190f4be70e2be96d8d0de355d450f30efdc85195925140bbeefcc05f",
    "signature": "0x997f518a45f1ce5a031d1f61c0a8f471df9ee8efddab6f9a717e2b22a7929f7934a5dab382818ed182a1fd17e9619a97bccb1382446bb0d233f4653d362a5f7d1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}