{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa0fea3f5e1fe4bff64b6c0dca2741f618899216133f5419aaf26897c12891677",
    "signature": "0xebb08e299c29e31f07014c12ee1c86f02b1b989c9606b636ea7f025c5d54130533f41f051a6ccbdab7cb80ab693dc192a02d8d1d8830d8a471860d74348163c91b",
    "signer": "0xd832cDDE8Da519b6aD56d440c66722AC65cc18C8",
    "userId": "755155896"
  }
}