{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcbd192ba4beb7013f0ec523d452b4173bea14da7b7964c3185b872db0873f0bc",
    "signature": "0x36ed449bcb04bada9d653acebf9ba3035afbcf0f11400382033c16e40b93b70674af52b00b1daf84cf3decfbde8250ab380e8868a6a4ef5865f44a853e635e121b",
    "signer": "0xCc9c1dFe925a19b24ee6FD30aBD7d8D77154C8C5",
    "userId": "125608105"
  }
}