{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9d080862444c30a5bf1e1efbed7bce1b4d857cecde09b269c2331b9ec0984a20",
    "signature": "0x716be95c0d13dad9b3c55e0804b147b9eaabb2f43dd626464f98a15cffc70fdc0672009f4fa640a8c15ce3df7c2592a81b494f55e4c3abdafe0b8b5beb32167c1c",
    "signer": "0xbDC8730Cc87A53E5Fab78bFB7d53910f0B788A24",
    "userId": "683048580"
  }
}