{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43299",
    "entityType": "User",
    "nonce": "0xc5d3fb1c69e7486ebf4447a13c7ca746fd7710e34d7a5a8ea29112ee6750b07d",
    "signature": "0xad64ece63446fcfe7b7571e0b94eb4906c546a31ff5685e53646150d8f41893935d8ee94d471f4c29c670f7a57995d35231cdbb9da425df3683e0a475f72c1901b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}