{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7938544343fa7ea6a1b75c99f7ee461b1f4ecd0f05c9da220b68c48361ee1266",
    "signature": "0xaeb55d653c2344f2c703239101d56203d35eb6adcc499837dde8b438c74a0f6b37b1bdfcf8c821a96e7c0a3658604caca58971b35b2497a23c348e940b623c451c",
    "signer": "0x3b1b23ccc8029Fe56adD1733Ba53604d382eBfB3",
    "userId": "117509073"
  }
}