{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849530",
    "entityType": "User",
    "nonce": "0x86efea5212616f3de83f012e7aa4f57a6e6f6e746e31933e287866f1a7e93916",
    "signature": "0x796205f52ba37839348f3d9eb8957fae6408a6aefc61de0e8673b87c54fac2ca5637f2a0dbc35d0b1cc71dc6631f2659a5a32a3e682407d1e3927369d228ab811b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}