{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364778",
    "entityType": "User",
    "nonce": "0x176fec06e642942656d05349d5e9a1fac1c3250291933f81413c4ee68e1692eb",
    "signature": "0x872638c6ede808624ed59f23a19953d58f45b109c6ac24f0a363db029aedd70d60637fbaeed58312d63d0a1b351e08397d2d6e9846f999861194a7f1b1fdc5b91b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}