{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2675",
    "entityType": "User",
    "nonce": "0x185dd96de3b3d4b91d2009a370b8f188b57828547aa89b5eaf0b98611acc291f",
    "signature": "0x2931d0a125deb7bb883f84cfc25d600ce2fef92a4bcc6f69e8073e1de790dad03b6700a2d2d964eec70542dcd5ac35df9475421b7bf0cf3c0a204afcb0bf928a1c",
    "signer": "0x4Ff77Da6D5C7286ea15F7F94FdCC04a641dE9a27",
    "userId": "512734349"
  }
}