{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51541",
    "entityType": "User",
    "nonce": "0x85abb164baeb366a62a6acee25e2ffb43ef8824e0c9fe78f397996016f69b940",
    "signature": "0x3c9ab652b2b9a70b80883412323e430710ac92254531d941b66267bbfb270d9f5a8f7e5cbae83ca81ec26c3a4709442a44b1b906d801e21abd04b7b1ad7f502d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}