{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "812221954",
    "entityType": "User",
    "nonce": "0xb4b68c8eba702615aa277041a62bc4b0ec348a3c2e6ac5bb5b69c997dd13ad04",
    "signature": "0x28f51a5adb7e7e4366c0dd8e0d0bb374da1912ab949adee4b721ffc4bb808ca3422978d7fc87b0d4e1bef0d5ea573700d7405fb81eb37396d969d672018aa8ae1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}