{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451684863",
    "entityType": "User",
    "nonce": "0xf4b216ed50c0cef3bb24a4b6db6654ccfd8c61b632dd7da0c9ee6ac3b5784e17",
    "signature": "0x4aa07179bb9caa0c6cd90efffb19aa77d4017508dcae993656ce1700fe81924e74030c9e94ee2524765ac4993876e7aafcca3742911339f045908043ce74bcc91c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}