{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x5944b6ba8b31ba98c21d4975cf146fbb36d018ec4671c4887713f05afdc6352a",
    "signature": "0x6d56aa1f00e5a126e2d036e6cf3580e33dd1c5be467450c70d48335ca30160665368c2ffd6a3b2b039cee06fd8781601cd661292a20533987c5f178809013bee1b",
    "signer": "0x813f5835f89886d207B80d05426Ee883357a84E0",
    "userId": "934354675"
  }
}