{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20819",
    "entityType": "User",
    "nonce": "0x70ed15fae8d9bf6ddd6127e16cd6bef678bf64b6f4ba49be0337bc82451afe7e",
    "signature": "0x06f69168bb1cb7955151be657ce1ac826b7405d364d54a6ef31764cd0d61a5497b9a3319eb831521d4acdee196fed3eb45b722b13f77c4eb63e6e600f78998731c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}