{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x4e4ef3fdafa90ec5268158385fba0fcd2683843531a4e7260c6db56569f6f198",
    "signature": "0x142c129fc9d45fec479592719a63169e811d69231802fdd4c87abcc378ba67a622e66b4f2be52d2e488ad364eacfe0bbf9cbd924b98596d7ad4fe200a4e59ac11b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}