{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "429184",
    "entityType": "User",
    "nonce": "0xac6740564b22d2ead436d5dfb9a3aff70c6695d369278e3e3b330ebb0e4778e1",
    "signature": "0xe0d4ea4054ebce02ce4cc0a7b67fc3ab8441605762bf58c1415199f31cbef3674a34f8af117cac544f6c07c84138269e48bd8b47f6b76a3de1cb1be5800f6cf01c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}