{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699593405",
    "entityType": "User",
    "nonce": "0x8041a98af6f846df3b60629c906bf1415d3c5303b05aa0485d88f8aa09d6f930",
    "signature": "0x2add22d3664a149ad515e486ea6526a42b67bb630c3f5f434b28136f687812db7cf30a4b7f9edab71d2f59c15033c09494888c57a80f23aa742fc10522eb6bdd1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}