{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb9c00ecd6c0e98b1a0f0a33ddad91e428cc45471b1fc527f368e75bf8505883f",
    "signature": "0x96c18492bdde20be6c74fc3271ae6a2c22df9fce496f6eb4dce01481989b97980a242e738ec07821d5f215fd671d31e8eea36ba5295a724a3e1c946026045e431c",
    "signer": "0xC62d580617B6927bf532824Dd1e068646677b30F",
    "userId": "782022954"
  }
}