{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "534459102",
    "entityType": "User",
    "nonce": "0xc92ddb979871a78677d24c4916395e3977224e17cc8cefb7c64426df94d3b920",
    "signature": "0xfca949213f936156eed2d08a222d5552ac5a8dcf797ea0027cebc95db9442b761502e3e1d65db84c168e30ed4eaa289019661fe88f2d72589d0b503233066aa81c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}