{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357010",
    "entityType": "User",
    "nonce": "0x9797791ccbe253462dd9cc66bcc8ca26981706319360c37856b53da5ba062675",
    "signature": "0x14a179847c16eec601d3acf5d8934ef0778f240cbaaef6038b7cf47b4c2e43ad014b4f66595adb143d03baaeb4f35fdba0f475c527a8d346d23502bae60f9e3f1c",
    "signer": "0x38c65d779554649264FD5A23B412Dd6237e675c2",
    "userId": "839739705"
  }
}