{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0xc3c79b9188c12b8b5e095f3ee5e3646c11a7f084c038d3be61ffa1a1deaa7c3a",
    "signature": "0x67030345f07b5b2b5c8fba8d0661b98d94b6e3175c1d923611079228eece3726379e6722c9affbce8b1c668b198c56868d6cf3c47f90efc3b6809c90c0c3c7251b",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}