{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416239376",
    "entityType": "User",
    "nonce": "0x3fdd204c7be9b30550eb2266f7607dd20c0374950cff0ef88530cd49cdfde681",
    "signature": "0x34e5e87ab905a347c695e655a34976222ceb3370a85546a275f95431730591ed49beb84baf72b6e47acdb9d9335bd125ce82ae68fa12748e2ea0b940a99e8d901b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}