{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6784",
    "entityType": "User",
    "nonce": "0x73bb8ddf1586bd3c623af2e8d189b8799549c6747042f04784ebe83663ab1b40",
    "signature": "0x56df2dc49ad107b1abbbbaffeca119302f10d33dd6cc64f3f5ba30ff681ecb1b0c62391c436294e150c48bfff13f0e616cfd801104d7c04395897b769837513d1c",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}