{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdd1d1c2dfbaf5b02fb9f172c952578886172e82637f3bab225db38beff0c302e",
    "signature": "0x1ee6c6f8b2dd8768a3673ff08d8e92f1a305b5be292118d19ed6418de6b023046fa665e8880b7084b836d15964ccfeee4e8ad0943830abd0b65769d2656a61501c",
    "signer": "0x75EF15E3DD2b76c8018a65cC3D376229946A3766",
    "userId": "836287765"
  }
}