{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65164",
    "entityType": "User",
    "nonce": "0xbc3a51c6a9cce0638ddb188950531fb3eec31063fc026db870d1435aa73b0e0e",
    "signature": "0xd0a9b1a8f293cc8845fced9ff2f7c7bdcef2a7ca84adb9937f40d1d60636fa582f7ba7a3789c738b0acf1ef3f07fc8a9ee227f9a60f88555ac1b2bebcff2ef481b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}