{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x06576fca52e41b330f5ff5e2eebe4d6cf71105fed01f153a55831d4c3a24993a",
    "signature": "0xce8ffe726c48e11bdc583a2190e4cfefd66d743bbb986f29eeeaa426f6f5b642792282ab8dfb70ff65f354cb334c59422a55f6512db45901e333f962ffc00f331c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}