{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136465",
    "entityType": "User",
    "nonce": "0x1de0fde984c39fe817934a843b1787ecaf7cd1888df11d58f491f8b2cb2cfeb2",
    "signature": "0x5874226a43df22ed7094b033ddeae669c8662ee41c6e3e20c4998009452d64fe5c0bf8f3020f6893b5a1be2f84d1ae5f094cc2cc11e8702791b3423bd76845b81c",
    "signer": "0x75E4B0AF28F84629E6Bdaf40E9d26Fad48f00cE1",
    "userId": "783920934"
  }
}