{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08aa2ad811b80728dfb515fdd2ac4c794d393a63716df0a3dcf5e008a9051f77",
    "signature": "0x7ff9c47b064025459eab889187e3e9b97c894820297b748075edec2f134c807f24158c502b8ccf58a797beae44222a13ffc7ee0aa8c476ca8046460c42cb123b1c",
    "signer": "0x4731380E74b3A5C59902e5AcFcAd1fF73f7aaf09",
    "userId": "367370924"
  }
}