{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa7f1da63b8132a1083936032538a42c86283b2802bdf381edb1eabde3bc7489a",
    "signature": "0xc83c7275ac1690dadef60f3b8344fc8e0fcfd019379cc2f5acab2465c1363273495b7d3034869694ac279d8c3c943a14bbf0f1b020c474597e8e37a52452eb451b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}