{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd50ac81856c409c854ed0f2a0c407f3db71c2705076ed9b9105d508a103031de",
    "signature": "0x379937f9a053be7fda1c88b72998151e4a74a09ae0b7f4cd5d9b95def7c6a16c10b26839018fa6fc41379aa3d95322ed48f8db95767112b64e08b85fd5fdab8b1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}