{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x72a27d5dcb83104cf71761f8d07d25e0285644fdbed3fe8c3322a5506d4407f5",
    "signature": "0x712c39575443d31dc96f0ac5e42f2d6b1322b632e7b8a746bea35bf209fb74312828c098aa92c6178e469d5b008fba035ba93257333aee5b29223fa7e6707a181b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}