{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xb7f0498f8749352769e439814fa9a678122170c688ee3f852869e0a37dc2ebb7",
    "signature": "0x3b39c78d8625b3e347877e896cabbb61e2f84f2987df602efbcd74c0700095ed5f1fae713f8d09e2c43b2adc4d352ee0d036d6c4ebcf543a984e986de287e9fe1c",
    "signer": "0x4810fE66B3A42DA4cb34b622aD9A069C293c6b86",
    "userId": "445042807"
  }
}