{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54284",
    "entityType": "User",
    "nonce": "0x1f92adfa4375ded4560aa312050052614f425ca2959aab79862e4588efb79f1f",
    "signature": "0x22bbde0d770ae1d62aa6dc3c70abda435bfc6926fb0a480b1d06209bf221abb32f6dfaffb81c83f1ae75e7a79891c6673b93f4b7a7b80abef874b83b36ddd4791b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}