{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf1e4d2fd63926890a45a75678105b0aeb54a382eed457ba1d93d658d097c504c",
    "signature": "0xde15378d4e32aeaad0f1c0e85a75feee451204f42c4ee175e508f3bd323a8cb92784c88c33afa0da9a3e501be1330a0ad68e0a344aa075454ae58bf7b0d70c0a1c",
    "signer": "0x0e59dC723E2Db3288f2dCA66D897A9960d342b8b",
    "userId": "680088579"
  }
}