{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831760216",
    "entityType": "User",
    "nonce": "0x330e3d9ae027fa19ab3b3fe8c88c03ca71de55bf6b601f23ae43cfcfff9313c4",
    "signature": "0x2a67500de8f29e6014543ba66168e809ad97da13cc0d4e467003df8d1eb24ae66650f1480d99ddf7cb6f402147e416afb2aac38fc977351af4f1f96f7e5cf6bd1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}