{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdabd8024254ea26ad6108811b8b0a9af70c3bf08cc9085eb89b0a179f928ebdd",
    "signature": "0x81792cd955065388219a3cf2777f690cdda3955a0c553526b3583907bbfc53b53288091a518050aa041501f3a8ab55885e15028fe0a45600cf03139f311959671c",
    "signer": "0x3e6886604E69914070Cc1BEf8f5944C0C5533F32",
    "userId": "640272111"
  }
}