{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x88f375596fab821e6a23fa77c2001e49b2bb1b2f7890bb252ca2c130944d0def",
    "signature": "0xb25f6af0e947ac5223ed036ee9ca61e7b38cec549580d040a24eca670a7ed1435c2214f04680503b6015c779d2554768950d99d83b7f71f074f7fdca9200d8431b",
    "signer": "0x84FafFbdCEC77B8fbE02c6ff72127fedAda2697D",
    "userId": "641538264"
  }
}