{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1979831",
    "entityType": "User",
    "nonce": "0xb445b3d8e8a962fea1e039dd2b1744e695c49a0e45be998aa818786e6efcd3e1",
    "signature": "0xe2fed5d0fa8aa86b53259f1628bc2838bcc57a7a0607167c84034fe2e6e09a8145493b165b1d120fbf3578792526cc70efaca7d51cb55cd13ee796c61c01747f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}