{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaac7de8f0d561191a431c16b1b7f95eb5364caee0a41dd6e5a3c0f39a6804046",
    "signature": "0x4b477cc0de5c8bc2462d66333806103888f6c54a60057c79bda40ba76c05fddd2d3332173317c1f2ec7401dc40b297699a444c9d75d2075088922840dd07f6991c",
    "signer": "0x799f7E22Aa59F21985464C4C8B48fd86286C076E",
    "userId": "836388825"
  }
}