{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8577",
    "entityType": "User",
    "nonce": "0xc19d027740eef0907145a6a5963477d4e1df9c16c6ecceae0c430a3d44831bb1",
    "signature": "0x7f65c84ec36dd3f5fb26cb0eb01c143c7772ed9513a276fc2155f0b536813220048655db658844ac33021a47978554cd873d99b4f94ebbe5a97b4549a5fa89111c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}