{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaad4b6c01bd0016035e8392aee249a15153417489e35f373a512adc3714c35f2",
    "signature": "0x0ffc444cc043684f1dc5dca8b5244632befc0707f515803042cce7c8f3f7ca192763c18d6e76b9f425cdca78d9cc9e826c82bda519aabf33d4a4daea94bdfa4a1c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}