{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb6f6f14d6df8c7c7571a0923c82276349dcb465e6fc7dd8ae2bf18e9af136892",
    "signature": "0x5f02c1abd7ffe9a57cb1dd15af4e6921e6d6f80f499dfa77651e312be02a72564ab6699eec4ca48cccd70526b3efdddb0980efd8f87027bccc66bd9217d941c31c",
    "signer": "0x9c0A34bA0cb154Ef08cd898B053E0B83Eb1C409b",
    "userId": "378649716"
  }
}