{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137329",
    "entityType": "User",
    "nonce": "0x85c20379cc93e159e6bd771b703e0c0ad100b74c089ea613857985c869356e47",
    "signature": "0xadfc754d8260e7346ddb957874c0b71e897d0e135cc1b18aa4505c599cb7fa547dec7175b7232f7e1d58012e05fc47718433d6272a4466fe7d64c578ff111f9c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}