{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28850",
    "entityType": "User",
    "nonce": "0xa9701cb4e4671bf8e367831e8e6b030687f15a42c4318c852e953905280c85db",
    "signature": "0x05d10f8ca3faa0893bc589499d0d5e23112f9229600f8da2465c97b919b12af060ddc87705fdc31b5ecf12b5edc42015277ddf166864b86a369bf65f8f95c6701c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}