{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1965",
    "entityType": "User",
    "nonce": "0x4e9bb99c28d85d296d11fd67e64187b5ccb2a667a5661cb8244a8f5648f301b4",
    "signature": "0xf21199e8eb25a8de7c38d13428e8f622f935ede972e75a508e61e8fa25ba50465b05c068203588dd5530c5601912a2899f13a4cd9bba76074051e456ce9e3b281c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}