{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07c65f1786e11181cb72e1d00614b9d4a7455b0256c87bde22b57b14cbd11155",
    "signature": "0x85c57278864cbd153812e3e816ab62151a0a1a17090bd217b495b542b5db06941ff9f661c73a77e2d1a611dcc82269cafea06395d3c07bfb64144a8acec40c8b1c",
    "signer": "0xfD436c2cA96F1A065592948780034F11058bB918",
    "userId": "417838670"
  }
}