{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x28b2d459f819364f9c9a9377c2ed1d37eee948c5fb17559cd1b537a56898d2a3",
    "signature": "0x69684e8a4df8564445def0153352d171eb950e89010e00801caa98a5aca768583db05b92e14352db5ef9f12fcfd9799093a3a3c866ff1133dcef41a7d65f36121b",
    "signer": "0x0883B8C0Ba9f84Cc8839315CF74dB181c8A06612",
    "userId": "828365327"
  }
}