{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326837",
    "entityType": "User",
    "nonce": "0xdb3f3ef9a647fbc4c93e4b6ac186673b78449ecdea89dd9deb48925c2c35f93e",
    "signature": "0x1c462ebc10fe6a7d69adb6f7e510bd686ee2fe73ef7fb2bb87c02636f04403b072fca51058043d5a5b8a5652e92fce6a32ecc047172d5df2540572e9793d62671c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}