{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "877304859",
    "entityType": "User",
    "nonce": "0xb786dc02e30fe60a87722f7164f784b1edd954f9dd83e4f867497cafe1fdde27",
    "signature": "0x02815c829eefe139d9a476670d190962db2c8b9a0f30059e3c02893e2dc63b47110d85af02aabfdc328266d565b45524f52754b83a25c7c9c785d7935a68e1d81c",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}