{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0xfebe0044a3f65d277b4ed654cd5ee158d4c4d2cd67bb40524161d6f3b0a5fbdc",
    "signature": "0x809a7fd0b7f5020a359c400cc0f03637add64db281450cdfed0b2e3367af3aa90aa589858726f9231584526def286bd1f2ca3022ce4b3a1c4013c694664a1c261c",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}