{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb3ce08105d1af2eb340763401677549cfa74985f4e286056ef12616f164b7aac",
    "signature": "0xbc5334b130d5420323dbc24f2b5d877e58bbdf1b3b568520453b97b3ab141b873721dc7c2c630b4bedf756ea8ceefc1a88f83322101946f05337638de5b071c21c",
    "signer": "0x7125bc5A9574Bde35f8bB6D3b6581E4E8315fC1d",
    "userId": "576162313"
  }
}