{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984621213",
    "entityType": "User",
    "nonce": "0xff143b200e69f429e42385371d3650c5c6170cd31c2f66ef717380cfa5169a40",
    "signature": "0xc8caa5eb09812ef321b49d778869c55203a9396807e51183044f3a8fe29acff44007308cfc3c412cb4404d5c1fb1ffa37acf8352f829dc47bae9836a82866e141c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}