{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e3ab61a3359948ee7554acb9ef8845712fb20acfe8fa57866822c7b2e2a8b05",
    "signature": "0x14b643b1b271d0e5be136ebff8b8308731311b57cbf2deb293f2a61d940ef3e27c4dbd5663601c49e0317576b62d7fd94e9054fd64f6fd33ebbd0ee7ede41f411c",
    "signer": "0x69B039fFC20468b984e20e6D453fF1c01B206f1b",
    "userId": "896352050"
  }
}