{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171637838",
    "entityType": "User",
    "nonce": "0xaa548de853782b97c54f9731d85539f2eeec79d449d140458db3982b0dbc85ea",
    "signature": "0x99cac6f5218013c0d86ac3989ad7b9187ab07927e7f198a2897fb723147634700e3b63b6a9c41241be99b9b8cbc78836376806eec150f2c3bccba48f5cad2e391c",
    "signer": "0xd6F1269ac846201d7f6d5574279594D67A06bBb2",
    "userId": "624634439"
  }
}