{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf0d558af93ddf87a6ba4b8f78aa69fea1726257ac8a45e455ab362e1ba65fd0",
    "signature": "0xf680509736ed873279971a366d8890b4becd7eb213c10da815a446f22b46c0be63961dec992bb965e756c292acdfe4a8d2a79e3a2f7a81946e06d2a3c0aa47331c",
    "signer": "0xae8D0713cBbb0e8164ad4Ce96676231064E88D0F",
    "userId": "457531149"
  }
}