{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x529b91f74f58b1d4579878ceb8bd69c5c56b38cffe8dcab6a1316389a0f91090",
    "signature": "0x10d09ffedf0f07abef67f88e889b602bea6434713c41608062394a83385d549b72610880f094e747ee6b8d853aefbc65eaa327eb3537736f4b67c6e9c65eb3b31b",
    "signer": "0xc02Ab3EF703Ec920c4346fE42225136e0B84fb04",
    "userId": "941560326"
  }
}