{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0xe4dcfe0dfc3bdb1caf941ccadcef4c341cbe5a2a51bb3c41787be1a8a2550783",
    "signature": "0x51d35ca83513df6064e05be900ef46aeb6223ee197c564b1e8bee6beedb8cb7e77430f26fa447d0027a9e028c06f79fd111b34582354ae149e13b84c4282ca291c",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}