{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1832381",
    "entityType": "User",
    "nonce": "0x1bfef608e5d84d4c9c7e17bfacb0478417a2d4299bfc9ca1da05aaacf1ad6b10",
    "signature": "0x64082716fec50188e6f2a5cbf149f8be193ed558381b2094ba24527a64e0af71240129fe793c542ea7d574020203db6dc952710db5171ce50c9688d7be83e3961b",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}