{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1458590",
    "entityType": "User",
    "nonce": "0x528cac0dd95a95c73fc19ededcbafe521039ea56c67c7d4fe26a8bdc23385544",
    "signature": "0x87a7a5b98baf5e11eb13d7ac73ff583da397c535ccec3c5bcdac242cf73ec21b4beecdc73ba84fc0c85ef3df9b0ee6ada05815243491c0cc8694ff6c56b1d8061c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}